Here were Taylor's stats from game with at least 10 carries over the span of his career . . .
Rushes, Rushing Yards, Reeiving Yards, Total TD
10-45-25-0 vs ARI 2003
21-89-11-0 vs BUF 2004
18-78-18-0 vs PHI 2004
15-33-18-1 vs DAL 2004
16-61-24-0 vs NE 2004
23-139-25-1 vs CIN 2004
25-104-27-0 vs NYG 2004
11-32-24-0 vs NYJ 2005
19-59-26-0 vs PIT 2005
11-40-6-0 vs HOU 2005
20-59-14-0 vs DEN 2005
AVG: 17-67-20-0.18
Of interest is that the Vikings have said they think Taylor could get 25 touches a game. I doubt that will happen, but that is the story they are telling at this point.

OK, so if he hits his averages from this sample, then he'll put up about 1400 total yards if he stays healthy for 16 games.
Childress has proven to be a guy to throw to his RB's and has stated he'd like to get CT involved in the passing game, so PPR stats should be decent, too.
The big question is how many scores will he get? Probably too soon to know how/if he is used at the goal line....
Of course he is on a new team in a new system, so this information isn't as relevant but it is an indicator that he will be productive. RB2 numbers seem to be a very reasonable expectation, with potential for RB1 numbers if he stays healthy and can cross the stripe more than a handful of times.