Who knows if it's true. I don't think Lee's play is a problem - he's our best defensive perimeter player, and OK on the offense, save the low 3 pt percentage.
The statistics I've seen suggest otherwise. Among our currently active backcourt players only Babosa has a worse defensive rating than Lee, with Terry's being the best and Rondo second.
Of course this statistic is hardly a 'tell everything' stat, but I really see nothing outside of the "eye test" that suggests Lee's defense has been anything special.
As much as his individual defense can be quite solid, his team defense has been pretty mediocre.
Add to that his rediculously high turnover rate and it's hard to make a case for keeping hold of him. He really doesn't do a whole lot of positive for us when he's out there.
Don't get me wrong Green has been terrible defensively as well, but at least he has been scoring the ball with some consistency over the last 6 or 7 games.
I'm not sure who's been a bigger dissapointment...Lee or Bass.