I went under tools and did "generate manger profiles" > "teams in organization." I then checked Arizona's MP Report and depth report. Under neither tab were there any spot start percentages. After reading your post, I went view>roster manager>Arizona>depth chart>other actions>generate MP. Again, no spot start percentages. In both cases I get MP Reports that look like this (below). Do you play with projection disks?

----- Catcher -----  --- First Base ----  --- Second Base ---  --- Third Base ----
 
Start Marson              Morneau             Cabrera             d'Arnaud      
Plat                                                                            
Def                                                                             
Util1 Torrealba        0  Belt             0  Baker            0  Baker            0 
Util2                     Guillen          0  Guillen          0  Guillen          0 
Util3                     Baker            0  Bloomquist       0  Bloomquist       0 
Util4                     Blalock          0  Kipnis           0  Blalock          0 
Util5