The Celtics have one of the deepest benches in the NBA. Guys like Delonte West, Jermaine O'Neal, Glen Davis, Marquis Daniels, and Nate Robinson all have had significant experience as a starter and/or reserve playing meaningful minutes.
To start the season, the Celtics depth was projected to be one of its biggest assets, and to a certain extent, it has been.
The C's have gotten very valuable contributions from Glen Davis, Nate Robinson, Marquis Daniels, and even Semih Erden, Luke Harangody, Von Wafer, and Avery Bradley have made positive contributions to this team.
However, because of the injuries, the second unit has gotten virtually zero time as a traditional second unit. Players have stepped up in the absence of starters or other bench players, but they've been playing outside of what Doc Rivers probably envisioned as their role for 2010-11.
Due to all the injuries, we have yet to see the second unit forge a true identity, or a coherent rotation take place. Doc Rivers has done a fantastic job managing players' minutes and doing some needed patchwork, but assuming the Celtics get healthy at some point this season, players will be relegated again to their original roles.
We still have yet to see the Robinson-West combo that looked so good in the preseason, or yet to figure out exactly how Jermaine O'Neal and Kendrick Perkins will fit into the defensive rotation, or even who the starting center will be.
There are still many things left to be established with the bench.