Less than Ingles a Sf who is shorter than him. He barely weighs more than PG's like Westbrook. Who would he guard at that weight. His great post moves wouldn't be effective against guys 50-70 lbs. heavier and much quicker than him and he'd be a major liability on defense. Even a guy like David Lee who is much stronger and more athletic than McHale has trouble seeing the court much because his skills are kind of obsolete.
Bird was so skilled he would make it, Ainge's feistiness might get him a small role, Parish is probably long enough, DJ maybe.