PER differential by position is an interesting stat I frequently check in on for teams at 82games.com over the course of the regular season. It is a quick and at least somewhat objective way to determine where teams possess their strengths and vulnerabilities.

For the Raptors, the production decrease with the departure of Chris Bosh has been predictably noticeable.

He was frequently listed as a center during the 09-10 season and the team had a +5.8 PER differential over their counterparts.

This season, the Raptors have a -4.5 at the position. Bargnani has played 66% of the team's minutes at the position and his counterpart is doing everything except foul at a more efficient rate. His eFG% is at 49.5%, while opposing centers are posting a 56.8%.

The wing positions are running at a deficiency again this season, with -3.7 at shooting guard and -3.8 at small forward.

The one strength for Jay Triano's team has been at point guard, with a +1.3 PER differential.

Newcomer Jerryd Bayless has a +3.7 differential in 20% of the available minutes, while Jose Calderon has a +2.9 in 47% of the minutes. Jarrett Jack had played in 23% of the available minutes before the November trade, which skews the differential down as he had a -5.8 PER differential.

The Raptors should look to sell high on Calderon and the general position of strength, since his age doesn't match what they are attempting to build with Ed Davis, Amir Johnson, DeMar DeRozan, Bayless and possibly even Julian Wright if he can string together some 15, 9 and 5's like he did at Cleveland.

Selling at point guard has been a familiar refrain for the Raptors, whether it was the T.J. Ford trade (didn't work out for anyone) or the more recent Jack trade (a win in terms of talent and getting younger).