I think the two key areas where this is going to be something to watch going forward rather soon - besides the EE drama - are the bullpen (obviously) and perhaps also first base.
For instance, I don't think Salmon will be a world-beater, but he's got enough qualities that I'd like to see him get an extended shot. When he gave up that two run bomb last week, it's almost as if you could feel his future chances diminishing into thin air. I'm not so sure that's a good thing. McBeth also just got the call; how will he be utilized? Will it be Stanton and Saarloos in high leverage situations still, or will McBeth get an extended opportunity to trump them?
FWIW, I do think Coutlangus' role has been utilized fairly well so far, especially now that Cormier is history.
First base will also be interesting very soon with Votto if he's able to continue to emerge. Consider ...
'07 Reds 1B: .257/.331/.399/.730
'07 NL 1B: .267/.357/.429/.785
For the most part, the Reds got away with the veteran platoon in 2006. But that hasn't happened yet in 2007. My hope is their handling of Joey Votto revolves around what's best for the future regarding Joey Votto playing first base for the Reds. If they hold Votto down in AAA because they believe he's simply not ready, then that's fine. But if their reasoning for holding him down in AAA is because they just think the veteran platoon is the answer, then that's a potential sticking point.
I'm not advocating the Reds bring Votto up now. It's just that first I hope they promote Votto when Votto shows he's ready. Second, whenever Votto does come up, I hope he isn't relegated to the bench after his first crucial error or his first 2-19 slump.