This.
I've been a big proponent of Patrick starting last year, but the more I see of him the more I understand why the Brewers are using him the way they are. As a starter, he is probably more of a 4 or 5 (yes, I know his stats will say otherwise but that is mostly because the Brewers are limiting his exposure).
His best ability for the team is his flexibility. Spot starts when needed, multiple relief innings to backup a short start, and even some high leverage single innings. Not many guys can handle that variety mentally.
Sproat clearly has higher potential as a starter... just got to get him over that 80 pitch hump. Henderson, Gasser, and Crow are pretty similar stuff-wise to Patrick. Crow has an elite CB that might distinguish him a bit though. Likewise with Henderson and his change. And lefties (Gasser) always get extra opportunities. I thought Drohan was going to be a AAAA SP or BP guy... now I'm not so sure.
Oddly, it is probably Patrick's flexibility that works against him being a consistent starter.