I've seen that suggested several times in game threads. I've been doing home renovation stuff in the evenings lately (getting the house ready to sell in anticipation of a move to Colo. in a few years) & haven't been able to join in those threads, so I thought I'd throw the Taylor-as-closer issue out in a separate fan post.
Using him as closer is tempting. He's obviously the best relief pitcher the Rockies have this year. He's got a good fastball & a better curve. Corpas & Fuentes have multiple fails on their track records. (Whoever ends up with Fuentes next year should just give him a 20-day paid vacation prior to the All Star break. He's fallen apart at that point the last 2 years.)
But I don't think so. Great set-up relievers do not always make good closers. Watching TB-Bos last night & seeing Dan Wheeler (an excellent set-up guy for the Astros & now Rays) struggle to close a game in Troy Percival's absence -- Wheeler was bailed out by a Willie Mays-like catch by B.J. Upton & a stupid caught stealing by Mike Lowell -- reminded me of that. The Astros tried the same thing last year when Brad Lidge hit a Fuentes-like fail streak. It didn't work. Wheeler just isn't a closer.
My view is that Buchholz has found his niche as an 8th-inning setup specialist, after years as an inconsitent starter. Don't mess with success. It's not his fault if Corpas and Fuentes haven't done their jobs.
But I guess the best counter-argument is: why not try him as closer this year, when the results don't really matter as far as a pennant is concerned? Of course with JDLR and Redman in the rotation, the closing opportunities may be few and far between. Being closer behind those 2 is kind of like being backup SS on the Orioles in the '90s -- don't expect many opportunities.