He threw 107IP last season and if you count in the 40 innings of Arizona Fall League in 2008, he was over 100 then too. Thing is, he hasnt reached the 146IP he threw in 2006. His IP totals have been..
2006- 146.0IP
2007- 110.1IP
2008- 109.2IP (including AFL)
2009- 107.1IP
These all include MiLB numbers btw. Hughes hasnt been shortened, he just hasnt been fully stretched out. I think the overall state of the pen will determine how he is used this yr. If Dave Robertson and Damaso Marte pitch like they are capable of pitching, then Hughes could be rotated into and out of the setup role. He could go from being the setup man to throwing 3 innings of relief back to setup man to keep his arm stretched out. If the rest of the pen falls through, then he'll probably be in the 70IP range, which isnt enough.
Regardless, if Hughes gets stretched out to starter in 2011, it will be similar to how we handled Joba last yr. He'll start out the yr going as long as he can and then start skipping starts or being shortened like Joba was. That being said, there is a pro and a con to that approach. The pro being, the player isnt overworked and should be healthy going into the next season. The con is, you run the risk of rendering that player totally ineffective, which is what happened to Joba. But after #27 last yr, I am really happy it worked out and Joba should be healthy and ready for 190IP or more come 2010.