A. Rod, off to an horrendous start, only went down 0.2 last week. The only guys that seemed to go down 0.3 are those who are injured or don't play hardly at all.
Plenty of guys went up 0.3, though.
I think the supposition that ESPN uses is that the better players who are slumping will come back, so let's not make them too cheap, while the good players who are doing better than expected will stay at that level, so let's raise them even more.
Also, there are a lot of players who are simply underestimated at the start of the season that need to get their values jacked up quickly. Probably many more of those than players whose value is overestimated.
Last year, guys like Corey Patterson or Hank Blalock, just to pick two quick examples (or Zach Randolph in basketball, which I think follows the same logic), had their value go up week after week because they were way too low to start with.
But I don't think it would make sense to lower A. Rod's value too quickly.