Re: How does one become a "supersub" or utility guy
I think there are really only two basic requirements:
1. The ability to play multiple positions.
2. You possess a skill that is valuable in general, but less value than the starters at the position
I see 4 basic templates:
1.) Prince Midas (2B/SS, maybe CF). Has a golden glove with versatility but can't hit well enough to justify a starting gig. Examples: Neifi Perez, Juan Castro, Desi Relaford, Rey Sanchez
2.) Biff (LF/RF/1B, maybe 3B). Can't play defense well, but can do it at a few positions. Often has a big platoon split. Does not tend to age well. Examples: Morgan Ensberg, Craig Wilson, Dallas McPherson
3.) Speedy McHustle (everywhere but C/SS). Can run like the wind and play decent defense all over the field. But he's got little power and a low ceiling. If his legs go, he's toast. Examples: Ryan Freel, Chone Figgins.
4.) The Grinder (LF/RF/3B/1B, maybe 2B). Probably the most common super utility guy. Sort of like the batting average version of Speedy McHustle. He can hit a fair bit and his game is generally well rounded, but doesn't have quite enough power to justify a full-time starting gig. Frequently undervalued and wasted during their prime, where they'd be a good enough starter for a few years. Exampels: Chris Stynes, Rob Mackowiak, Jeff Keppinger, Matt Murton.
Games are won on run differential -- scoring more than your opponent. Runs are runs, scored or prevented they all count the same. Worry about scoring more and allowing fewer, not which positions contribute to which side of the equation or how "consistent" you are at your current level of performance.