Again, this is mostly revisionist history.
1. We played a more defensive style for a good portion of that period.
2. Between fall 2010 and Fall 2012 Kompany was in fact the best individual defender in the world. This is before the injuries began to plague him constantly and he began to decline. That Lescott was his partner at the time was incidental, not causal.
Check Kompany for Belgium in that period and he was great. Check Lescott for England he was average.
3. We played with 2 DMs Barry and DeJong. Both well Schooled in helping protect defense to the detriment of our offense.
4. Kompany's littany of injuries began to pile up just as Lescott was being replaced. The Injury caused Kompany's and our defense' decline, not the loss of Lescott. This can easily be verified by the fact that anytime Kompany stayed healthy long enough to get into footballing shape, he returned again some excellent top class performances regardless of who his partner was.. Unfortunately, those became rear the more injuries he picked up.
Lescott was a ripoff. A stiff skill bereft bigman who was lucky to be purchased by a growing team that couldn't get top end talent at the time. He served us well. And I thankhim for it. But let's ease up on the false attributions.
I don't think we've purchased a weaker CB since Lescott.