Bob Cousy, point guard emeritus of the Boston Celtics, agrees that his old team has its share of problems. He just doesn’t count Rajon Rondo among them.

Cousy believes Celtics GM Danny Ainge would be making a big mistake if he trades Rondo by the March 15 deadline.

“I’m out of the loop, but boy, unless he’s a serial killer on the side I wouldn’t let this kid go,” Cousy said by phone. “I don’t know where you’d find a better point guard.”

The 83-year-old Hall of Famer conceded that Rondo, a three-time All-Star, is a poor perimeter shooter who struggles from the foul line, but said, “He overcomes that because he’s such a strong penetrator and a good finisher. He sees the floor well, he’s a force on both backboards, and he’s an excellent defender for that position. I think he touches all the bases.”

ESPN The Magazine’s Chris Broussard cited sources saying Boston is aggressively trying to move the 26-year-old Rondo and his high-maintenance ways, a report Ainge and coach Doc Rivers denied. The Celtics did consider dealing Rondo in past trade talks with Golden State (for Stephen Curry) and New Orleans (for Chris Paul).

Cousy doesn’t view the playmaker as Boston’s most pressing concern, not with the advanced age of the team’s Big Three -- Kevin Garnett, Paul Pierce and Ray Allen -- threatening to keep the Celtics from legitimate title contention.

“They’re in the middle,” Cousy said, “and the worst place to finish in this league is in the middle. ... I don’t see how trading Rondo would help. Good young point guards are very hard to find.”