Rodrigo Lopez is not good. But when we look back on this season, I suspect taking a month and a half to get him will be Hendry's biggest failure this year (and maybe the reason he gets fired). It'll be at least as bad as taking a month to get Nevin in 2006...possibly worse, because this team was in a better position to contend than the 2006 team.
The Cubs have a bad run differential of -23 right now. But if you look just at games started by the intended starting five, the run differential is +21 with a record of 19-14. The team only has a negative run differential when Garza pitches (because his starts are when the defense goes on vacation).
But when Davis, Coleman, and Russell start, the run differential is a putrid -44 with a record of 3-12. If Hendry had gotten Lopez in here within a few days after Wells and Cashner went down, they could easily be 5-10 or 6-9 right now...still bad, but that would have the Cubs at or just above .500. Given the Braves' depth at starter, I have little doubt that a trade could've been worked out a month ago. Just inexcusable for a GM to let things be that bad for that long.