I think that's why Chris Johnson is being valued more highly than Maurice Jones-Drew in Tiger Fan's spreadsheet as well: because of his [last] name. I agree that that part of the calculation could stand some refinement, but positional rank is a better proxy for expected fantasy starts than any other easily available number I'm aware of, and as long as positional ranks don't recognize ties (and I agree that they should), name will be the tie-breaker.
As for Johnson versus Peterson, this year's top four RBs are bunched more closely together than in the average year. That's another drawback of using positional rankings; in addition to not recognizing ties, rankings also don't indicate how close or how far apart the #2 and the #3 RB are. But still, positional rankings are a better proxy for expected fantasy starts than any other easily available number I'm aware of. (And whatever you think of Johnson and Peterson specifically, on average, the projected #2 RB will have more fantasy starts than the projected #3 RB.)
Again, I think trying to predict the number of fantasy starts, and change the auction values based on that, is a fundamentally flawed concept. Essentially you're overlaying AVT on top of VBD in an attempt to improve the accuracy of the values--but AVT inherently contains less information than VBD, so you're actually reducing the amount of useful information in the values.The fact that the #1 drafted player on average started 11.1 games in the past, and the #3 started 10.7, says little or nothing about whether Chris Johnson will start more games than MJD,
this year, for
my team. The likelihood of a player starting on my team is partially based on the next highest-rated player at that position on my team, which I won't even
know until later in the auction. If I already have chosen C.Johnson and R.Grant, J.Addai would have a relatively low number of projected starts. If I only have C.Johnson on the roster so far, Addai has a high number of projected starts. You have to project the number of starts based on the team being assembled, not on historical data for a draft position--otherwise you're throwing noise into the system and not describing anything meaningful.
Auction values are not proportional to VBD values because bench points don't matter. Say that the #1 RB will score ten more points than the #2 RB, and the #47 RB will score ten more points than the #52 RB.
It should be obvious that you'd prefer the #1 RB over the #2 RB by a greater amount than you'd prefer the #47 RB over the #52 RB. That's because the differential between #1 and #2 really matters, while the differential between #47 and #52 is largely illusory since they'll both be on your bench, so it doesn't matter what they score.
Whether a player will be a bench player is not determined by his draft position, it's determined by the other players on my team. During the auction,
I will automatically discount auction values for clear backup players on my team. Furthermore, I will automatically
increase auction values for clear starters or important backups (handcuffs, backups behind injured/suspended players, etc.) I won't pay the same amount for Addai-as-starter as I will for Addai-as-backup. The software shouldn't be trying to mastermind the auction values for me; if it does, then the adjustments I'll make during the auction will double-count the same factors. If you really want to do this calculation for the user, you should have "expected fantasy starts" as a separate stat column for each player, and let the user input values himself. Otherwise you're using historical data which are largely irrelevant to my team, this year.
As I said, you can turn most of this off in DD, but it's not straightforward how to do so.