Tough call. He and Williams would both be tough cuts. Usually if a guy is just doing "OK" against 2nd and 3rd stringers, you'd not worry about him clearing waivers.. however, Dobbs has lit up the back-ups, meaning he's a step above their level and for a rookie has strong developmental potential.
What makes it tougher to figure out who will go -- if any -- is the fact that Ricky Jean is a primary back-up at both NT and DE, so "adding more depth" is a non-issue. The depth would essentially be the same if Dobbs is cut instead of Ian Williams or vice versa.
People need to understand there are 31 other teams in this league and probably a plethora of other players like Dobbs who have been impressive against 2nd-teamers. Most of us have only been paying attention to the 49ers games, so it's hard to say whether or not Dobbs or Williams would make it to the PS if we had to cut one.
[ Edited by OnTheClock on Aug 21, 2011 at 8:55 AM ]