I'd be surprised if he started this week. They have probably just brought him in to do an evaluation and see if he has something to offer. Hopefully he will bring something to the table, and maybe he can help us through the injury to Adams.
As far as a sacks vs. pressures goes, a sack is obvioulsy a great end result, but you can't get one without first having pressure. I would say having consistent pressure on the QB, is more important than having a lot of sacks. You cannot win in this league if you just blitz all the time in an attempt to sack the QB. You will get burned. If you put the QB under pressure, it will make things very difficult for the opposition. The key is to mix up the plays and provide contained pressure as often as you can.