Schobel isn't average he is beyond that. He had 11.5 sacks last year. That is beyond average. Bruce Smith the sack leader only averaged 10.5 sacks a year himself. This is Schobel's 4th year in the league. He had 6.5 as a rookie, 8.5 his second year, and 11.5 last year. He keeps going up year after year. I assume he will get more this year because he hasn't reached his peak yet.
Schobel isn't as flashy as Bruce Smith so he won't get as much attention around the league but he is good against the run and will give you 110 percent every game. He is a good solid DE. Any team would love to have him.
He is worth the cash.