What could of possibly made us start blowing teams away? Just trying to think if anyone was missing? Did we change to a two upfront at any point around the time that certain someone returned?
To be honest, I think we just "found" our way to play. Players knew where to run or where to pass. We had Sterling and Suarez who were both good at getting into the box with the ball at their feet which created dangerous situations (either because they could shoot themselves, pass the ball or get fouled). So far, that's one of the things we've been lacking, i.e. players taking the ball into the box at a decent pace. Balotelli is not the player to do that, but the team will get used to it. Add to that, that we had players making runs and getting behind the opposition's back-four. We've scored countless goals, because Sterling and Sturridge were able to exploit the space behind the defensive-line. Again, we've seen to little of that so far this season.
That's why I think Rodgers is right about the problem with having to integrate too many new players to play fluid football. It's just not possible at the moment. Attacking-wise the transition could have been much easier, if Sturridge (and to an extent Allen) hadn't picked up injuries. Because them missing games has forced us to play Lallana or Markovic more than we probably wanted (especially as Lallana is just coming back from an injury). There's not much the manager can do about that, except helping the players to build up an understanding and give them the right instructions.
The only mistake he has made in my opinion, is that he didn't play Sterling from the beginning against Villa. I know that we have to limit the playing time the lad gets, but I would have preferred it, if he had started the Ludogorets game on the bench instead of the one against Villa. Then again, Rodgers and his staff have a better knowledge of the players' fitness...
