Re: I want to add Steve Slaton, but...
I'm not sure I'd drop any of them for Slaton (actually, I'm pretty sure I wouldn't), but if I did, it would be White.
Last year, Taylor and White had the same # of TD's, and while LenDale had about 265 more rushing yards than Taylor did, when you throw in receiving yardage, there was less than a 100 yard difference. I don't know how your scoring works, so maybe that makes a difference, maybe it doesn't.
The reason I'd go with Taylor over White is because of Chris Johnson. Taylor's situation shouldn't change much. Peterson only missed 2 games last year, and even if he starts all 16 games this year, I don't see Taylor's role changing much at all. White on the other hand may still be the goal line back, but I just don't see his fantasy stats getting any better with a significant contribution from Johnson looming.
Everyone's an idiot, not just the people with low SAT scores. We're just idiots about different things at different times. No matter how smart you are, you spend much of your day being an idiot.