Raptors president/general manager Bryan Colangelo said a lot at Monday's season-wrapping media conference but one of the biggest takeaways was this: The Andrea Bargnani experiment is either coming to an end or will be drastically altered.

With Bargnani's future in Toronto rather murky, Colangelo admitted the obvious. "Miscast" as a centre, Bargnani was not thriving or lifting the team from that spot.

"We need a bigger, better post presence," Colangelo said, noting that seven-footers who excel on the boards and defensively are keys to success.

"Defending the rim is one of the main weaknesses we have, we need to get a guy who rebounds the ball."

Colangelo said nobody on the roster is "untradeable" and did not discount the possibility he would move the top selection of the 2006 draft, but said either way, a centre must be added.

"The biggest need is we have not paired a legit five (centre) next to Andrea Bargnani. He's our five because we don't have anybody else to play that position at his size."

Continued Colangelo: "I don't know if he'll ever become a better defensive player than he is. But can he be a better rebounder? Absolutely. That's a mindset, that's a desire thing. He knows he can do better, but doesn't focus on it.

"Whether Andrea is here or not, we need a guy who can do those things."

Colangelo noted the team has the cap flexibility that many teams lack heading into a new collective labour landscape and will be in position to spend to sign one of the many free agent centres on the market.

"There are a number of free agent bigs both restricted and unrestricted that we'll have to consider, that fit the bill," he said.