In september, those four had onlytwo losses, with theBraves scoring a combined single run in those two losses. Lowe had 5 losses, with a combined 6 runs scored by the Braves.the bullpen had 8 losses.
They knew they needed a RH reliever at the trade deadline.they knew they needed to score more runs. they didn't go solve either of those problems. (they hoped Bourn would help with the latter, but his OBP reverted to his career norms (shocking!). they hoped callups would help with the former, but Fredi didn't use Gearrin properly (ROOGY), and relied on overusing Venters and Kimbrel, until they got tired.)
and i got blasted on here for predicting both of those. as well as for calling for trading JJ back at midseason for immediate hitting and bullpen help.
anyway, i would agree with your statement had Venters and Kimbrel looked the same in September as they had the rest of the season. but they were clearly tired and less effective (mainly by being more wild). and that happened because of all the times earlier we had the lead but a small one, and had no one else reliable in the pen. I don't think increased production from Hanson or JJ would have changed that, after all the other guys left with the lead in all but two games in September. sure, it probably makes a one game difference somewhere, but it doesn't account for the September collapse. that falls on hitting and the bullpen.