Seriously, there should be at least one leader in each area. Keeper, a dominant centre half, midfielder and striker. That is what's missing, a strong spine. In fact, there should be 11 leaders on the pitch.
As for the NRC argument, if Petrov is captain and he vice/deputy captain, then why the hell isn't he on the pitch along with Petrov?! it undermines his position of that role by being sat on the bloody bench! He's not the best footballer there is, but I remember seeing him on his debut go upto every defender and nearly every other Villa player and tell them exactly what was required, and I thought 'you'll do for me, son!'
I do find it funny that people are questioning Petrov now, after he was voted supporters player of the year, and in fact, did no worse or better than Barry in both 4-5-1 and 4-4-2. The issue with him is that he's clearly not fit, so shouldn't have played on Saturday. Same goes with Davies.