Yes, we were good against the run - when dunderummy actually defended it. As it was, we had enough talent on the 2nd and 3rd levels that playing the 2-4 wasn't the disaster that it became the next year-couple of years. Woodson, Collins, Bishop, Cullen Jenkins, a fresher Raji, a fresher Pickett b/c of the rotation, etc.
Where things really went in the dumper was when we lost all those guys, or some of those guys, and dunderdummy more than doubled down on the 2-4, he went bat-shit crazy playing the 2-4.
As for who would have rotated in/out for a goal line defense in '10 - certainly Jenkins was available, and we still had CJ Wilson and Jarius Wynn in the rotation; can't remember who was hurt when, but Wilson wasn't entirely terrible if that's all you asked him to do was anchor against the run.
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The fall off the next couple of seasons was mostly on dunderdummy - but a lot of the blame had to go to TT as well, as he didn't do much to replenish the cupboard on defense. Still, there was no excuse for what dunderdummy did with the talent he had available to him. Just a terrible, terrible job of coaching by that idiot.