Raptors general manager Bryan Colangelo had some pointed comments to make about Chris Bosh during an interview with Toronto's FAN 590 on Monday.

Bosh left for the Heat in free agency, although the Raptors were able to work a sign-and-trade for some long-term assets.

"We tried in vain to put pieces around Chris. Different pieces, different styles. It didn't work out," Colangelo said of building a roster around his former cornerstone.

"No matter what type of player we brought in, it didn't seem to have the right mix with him as that centerpiece."

Colangelo also hinted that Bosh checked out on the team near the end of the 2009-10 season, knowing his career in Toronto was likely over.

"Despite limited swelling and any excessive damage on an MRI, he felt like he needed to sit for six more games ... I'm not even questioning Chris' injury. I'm telling you he was cleared to play subject to tolerance on his part, and the tolerance just apparently wasn't there and he chose not to play," Colangelo continued.

"The fact that our season was spiraling downward and we were hoping he'd come back sooner and we were also dealing with a few other things at that point ... we were really struggling there."

Colangelo didn't stop there.

"Whether he was mentally checked out or just wasn't quite into it down the stretch, he wasn't the same guy. I think everybody saw that, but no one wanted to acknowledge it," he continued.

"At the same time, I never felt we were quite in the game (in terms of signing Bosh to a new contract). There was too much out there, too much built up for him to take an easy out here, and he decided to do that."