Locked On Celtics – “Boston Celtics Starters REVEALED? | Joe Mazzulla's MAGIC TOUCH with Players”

Host: John Karalis (Boston Sports Journal)
Guest: Tom Westerholm
Date: October 3, 2025

Episode Overview

This episode dives deep into the unique coaching style of Celtics head coach Joe Mazzulla, highlighting his unorthodox methods for building team chemistry and trust, notably through activities like spike ball in practice. Hosts John Karalis and Tom Westerholm piece together clues from team social media and practice footage to reveal the likely preseason starting lineup for the Boston Celtics. The discussion weaves together insight on Mazzulla’s player relationships, coaching clarity, how he manages egos, and breaks down what to expect from this group heading into preseason.

Key Discussion Points & Insights

1. Joe Mazzulla’s Team-Building Methods & “Magic Touch”

(Starts roughly at 03:00)

• Spike Ball at Practice:
  • Mazzulla uses activities like spike ball to create instant partnerships and foster communication among players.
  • Tom Westerholm: “The key to spike ball is angles... you gotta be unpredictable. I’m sure these are all things that Joe likes.” [04:04]
  • John Karalis compares it to Karate Kid’s ‘wax on, wax off’: “You don’t realize that the spike ball stuff is... Oh, wow. We’re actually incorporating spike ball concepts into what we’re doing.” [04:38]
• Building Micro-Connections:
  • By rotating partners and games (previously relays, football, etc.), Mazzulla creates many “micro connections” throughout the roster.
  • Tom Westerholm: “You’re making little memories with spike ball… just creating these little, these little connections.” [07:06]
• Purpose & Impact:
  • Such “silly” games at the NBA level show Mazzulla’s grasp on what the team needs for camaraderie and morale.
  • Karalis emphasizes: “Joe has a real good grasp on just what the team needs in the moment.” [08:06]
• Offbeat Coach Persona:
  • Mazzulla is not just all intensity: “He’s not just Mr. All Intensity Predator, you know, prey, whatever… he’s got it set up so that his guys can have a good time.” [09:25]

2. The Mazzulla Relationship Factor

(Starts at 13:00)

• Deep Personal Connect:
  • Mazzulla is known for going beyond player/coach boundaries: “He’s come over… been at my house and played with my kids.” [13:29]
  • He attends important personal milestones for players (e.g., Chris Boucher’s baptism), signaling genuine investment.
  • John Karalis recounts: “Now think about being Chris Boucher… you’re just joining a team… and then your coach shows up… How many people are showing up for that?” [17:40]
• Coaching with Care and Clarity:
  • Mazzulla tailors his motivational tactics by building a dossier on each player, knowing who needs pressure versus support.
  • “Joe is always gathering a dossier on people, and so he knows who can take it, who can't take it. How do I treat this guy?” [13:57]
• Trust-Based Accountability:
  • Players accept tough feedback because they trust Mazzulla’s intentions.
  • “When you know this guy actually cares about you personally, the stuff that he says to you in practice doesn’t matter because... it’s coming from a straight basketball place.” [18:16]
• Clarity Over Common Sense:
  • Mazzulla’s strength is “clarity in how to communicate with people... and in who he is.” [20:04]
  • Tom Westerholm: “That clarity is so strong for Mazzulla that it then shows up as super… just very real, you know, like, very authentic to... who it impacts.” [20:35]

3. Starting Lineup Sleuthing: Piecing Together Preseason Five

(Begins at 24:24)

• Methodology:
  • Using Celtics practice footage/social posts, they deduced the likely starting lineup by looking at who wore green (starters) vs. white (reserves).
• Probable Preseason Starters:
  • Peyton Pritchard
  • Derrick White
  • Jalen Brown
  • Sam Hauser
  • Neemias Queta (Nami Escada) [as cited from video breakdown]
• Supporting Evidence:
  • Sam Hauser’s starting record cited—“32 and 8 as a starter”—and recent high praise from Mazzulla lend further credibility. [25:00]
• Hosts’ Reaction:
  • Westerholm calls it a “weird starting lineup.” [26:08]
    • “You got Queta out there, and it’s not like Hauser’s particularly speedy. You don’t think of Sam Hauser as a ‘get the ball and go’ guy.”
  • Both stress that no combination felt “normal” given the roster’s odd blend and depth. Rotation will likely be fluid.

4. Lineup Fluidity, Egos, and Mazzulla’s Button-Pushing

(Begins at 27:20)

• Earning Opportunities:
  • Emphasis on rewarding long-standing contributors like Pritchard and Hauser; “You’ve been here, you’ve put in the work, you have earned this opportunity.” [28:17]
• Managing Egos / Communication:
  • Because of his relationship-building, Mazzulla can adjust roles without causing friction, explaining moves using data or on-court logic.
  • “Because Joe has these relationships with these guys, you can do that. So... just because it’s the starting lineup... there's no reason to think that by November, December, January… we might be doing podcasts on how many different starting lineups the Celtics have.” [30:05]
• Roster Oddities:
  • The groupings feel “odd” now, but will evolve as roles and chemistry settle—signaling that flexibility is expected all season.

5. Sam Hauser’s Expanded Role & Celtics Offensive Philosophy

(Begins at 31:32)

• Player Development:
  • Hauser acknowledges he may need to act as a pick-and-roll handler and secondary creator, not just a shooter.
  • Sam Hauser (via media day quote referenced): “I might be in situations like a ball screen... or a second side action where I’m handling and I have to make the right decision, or it’s a pass, a shot, whatever it may be. I’m excited for that.” [31:32]
• Team Offense Outlook:
  • Expect a high-pace, side-to-side attack, with bigs needing to be in elite shape, wings making decisions, and more duties for traditional spot-up shooters.
  • “If the offense runs the way it’s supposed to, it’s going to be heavy side to side, multiple attacks… if you can’t run a pick and roll and make a good decision, you’re not going to play.” [33:35]

Noteworthy Quotes & Moments

• On Joe Mazzulla’s Approach — John Karalis:
  “It’s very Mr. Miyagi Karate Kid. You don’t realize that ‘paint the fence’... is another [defensive] move. You don’t realize that the spike ball stuff is... Oh, wow. We’re actually incorporating spike ball concepts.” [04:38]
• On the importance of connection — Tom Westerholm:
  “You’re making little memories with spike ball… creating these little micro connections.” [07:06]
• Mazzulla’s care for players — John Karalis:
  “Now think about being Chris Boucher… then your coach shows up [to your baptism]… that’s your inner circle. His family, and then his new head coach, who has known him for like, a day… and now he’s there, and you’re like, damn, this dude is in it.” [17:40]
• On the ephemeral nature of the starting lineup — John Karalis:
  “There’s no reason to think that by November… we might be doing podcasts on how many different starting lineups the Celtics have.” [30:05]
• On pace without transition — John Karalis:
  “I don’t even know they’re going to be a big transition team… you can be a good pace team without transition.” [32:16]

Timestamps for Key Segments

• Team-Building with Spike Ball: 03:00–09:30
• Mazzulla’s Relationship Skills & Coaching Style: 13:00–21:40
• Preseason Lineup Sleuthing & Analysis: 24:24–30:15
• Player Development & Team Offense Talk: 31:32–34:40

Takeaway

This episode highlights how Joe Mazzulla’s authenticity, connection, and creative leadership are critical for maximizing buy-in on a roster full of talent and competing egos. By investing in the human side, Mazzulla sets the tone for on-court confidence, role clarity, and adaptability—key in a year where the Celtics’ lineups remain in flux and player responsibilities expand. The coaching “magic touch” is about relationship-driven leadership and clear communication—qualities that, paired with the right X’s and O’s, prime the Celtics for another high-level campaign.