Is the Mavs Guard Rotation WEAK or Still a Work in Progress?

The Dallas Mavericks are heading into next season with real questions about who can actually create offense once Kyrie Irving and Cooper Flagg leave the floor. With the Mavs' guard rotation thin behind a returning Kyrie Irving, is Dallas one injury away from a full-blown backcourt crisis, and can the NBA front office find one more playmaker before camp opens?