That's overthinking it IMHO
If he continues being a completely crappy hitter 1/2 the time I don't think I want him going forward for the next 3-4 years. I really don't. In that case I'd rather keep Melky and give Gose the CF job, unless we could get someone else entirely. I think. Colby doesn't make it easy to decide, and it don't know what he will cost this off season.