Bob Ryan: This is the deepest Boston Celtics team I've ever seen.

The Boston Celtics have a historically deep team according to Bob Ryan.

Ryan is a well-respected sports journalist with decades of experience covering the NBA.

Depth is a critical factor in a team's success, particularly in a long and grueling NBA season.

The Celtics have multiple talented players at each position, which can provide flexibility and options for their coach.

The team's depth could also allow for rest and injury management for key players.

The Celtics will need to capitalize on their depth and talent to compete in a challenging Eastern Conference.

Celtics fans should be excited about the team's potential and depth this season.

The NBA season is a marathon, and a deep bench can be the difference between making the playoffs or falling short.

Only time will tell if Bob Ryan's assessment of the team is accurate.