I wonder if Colvin could play 1st? A Nady/Colvin platoon, perhaps? Guys move from left to right on the spectrum, and from the infield to the outfield. But I don't think there's much history of guys moving from outfield to infield, even first base. I think some have gone the 3B, LF, 1B route, but OF his entire life then IF? That would be tough. Lumbering OFs move to 1B, it doesn't happen with athletic guys like Colvin.