The Reds starters were awful last year, for instance Homer Bailey had a 1-14 record with over a 6 era. At one point he lost 9 straight starts. They also didn't go deep into games which wore down the bullpen. Eventually causing Iglesias and others to get injured. That starters have a huge effect on how well the bullpen performs throughout the year.
Not saying it's better than the Brewers but Iglesias is every bit as good of a closer as Knebel. Lorenzen and Garrett are pretty damn good as well. I'm actually not worried one bit about the bullpen.
We have to have our starters go deeper and we need to add a top of the rotation guy that's what's holding the Reds back right now. We do have Derek Johnson now (former Brewers pitching coach) so hopefully that helps clean some things up. The Reds aren't done with trades though so it's really a pointless discussion at this point.