Every team has injuries. We'll have them next year too. The OL has stepped up fine, and Martinez was in the game for 2 of our losses. Injured or not, we were losing both still, and I don't think he'd magically win us the MSU game either. We're still a 3 loss team either way. Only difference is we might not have needed a hail mary to beat NW.
You seriously think "every team has injuries" is the same as losing your 4th year starting QB and over half the OL including a preseason All-American? How would Alabama do if AJ McCarron got hurt along with 4 OL and they played their backups most of the season. They'd probably lose to ATM at the least. Look at Phil Steele's articles about starters lost to injury and how it affects the game results.
And that has what to do with Nebraska giving up 38 unanswered to UCLA, or 34 and almost 300 yards rushing to Minnesota? Did those OL injuries cause our 5 turnovers against MSU? We'd still be a 3 loss team with every one of them.
Ask Missouri about losing a starting QB. Boyd is banged up for Clemson. Florida is down a couple QBs and a few OL. Florida State's backfield is getting pounded. Georgia has no WRs left. Iowa state lost two OL in the same day to MCLs a few weeks ago. LSU has a QB w/ ankle issues, 2 WRs out. Michigan might like Bellomy back right about now, but that ACL isn't going to work to well especially behind their dinged up OL. Northwestern is down 3 running backs (even our depth would suffer w/ that). Notre Dame doesn't have a LBer or DL left I dont' think, and a starting QB that doesn't go to class. Ohio State has missed Braxton for parts of this season and his banged up w/ a shoulder now. Throw in 5 defensive backs that are out, a TE, and their DT they lost last week and they might argue they aren't very luck either. Oklahoma is short a QB, and a couple WRs. Texas is out a starting QB, starting RB, receivers, OL, LBer, FB, backup RB, etc. Mash Unit? Look at UCLA right now. USC is down to about 45 scholly, and winning with only 13 players playing on defense becaues they are so thin. Something like 12 guys out for the season. Wasn't a big enough excuse to keep Kiffins job though.