As much as QB's get ALL of the praise if their respected team wins or all of the scrutiny if their team loses, the game is won an lost in the trenches.
Say what you want but if you cannot pressure the opposing QB, it doesn't matter who the QB is, he'll have a field day. I'm REALLY excited that we got Canty, Spears & Doom. A dominant pass rusher in Doom and two run plugging hungry veterans in Canty and Spears. Our defense last year was plagued by injuries, yes, but for 3/4's of the season we made average running backs look like HOF backs and w/o Suggs and Ngata being injured, our pass rush was NON EXISTENT. Also excited about John Simon who reminds me of JJ(who I was sad to see leave, but it's a business) and Brandon Williams who looks like he can be another Geno Atkins if he lives up to his potential.
The offensive line last season was WILDLY inconsistent and I believe that's what led to Joe's inconsistencies(as well as Cam) in the regular season. The ONLY QB in the league that can perform well w/o an offensive line is Big Ben and even he can't last all season w/ the amount of hits that he takes. John Skelton and Kevin Kolb are no elite QB's by any stretch of the imagination but it's EXTREMELY hard to get the ball into the hands of a top 3 receiver in Fitzgerald when you're constantly throwing off of your back foot or running for your life. I attribute Fitz's sub par season more to his poor offensive line than the play of his QB's. If ANY NFL QB had the time they could get the ball into #11's hands but that was not the case in Arizona.
W/ all of that being said... WAYYY too much attention goes into QB play rather than up front w/ the big boys. In the trenches is REALLY where games are won and lost. I'm excited to see how our defensive front improves from last season and HOPING that our o-line can play consistently well this season.