I think Lee has been a huge difference no doubt but the critical part has been just timely hitting. For example the past 2 nights have found late rallies in the 8th inning. Everett hit the big 2 run homer late in Chicago. Well, the Phillies series...they just suck. I think last year when trailing after 8 innings we were something like 1-80.
both of these wins berkman was able to to do something, and definitely the presence of lee is huge. pitchers are now forced to pitch to berkman. Compared to last year, men on base, walk berkman, and ensberg comes in, and more times than not, no runs score.
the last two nights already show what a difference having lee in the lineup can do. when did anyone remember seeing astros comeback with an offensive explosion in an inning in two consecutive nights?
in my opinion, the numbers can only get more crooked because berkman doesn't look like he has much of a clue with his bat on either side of the plate so far.