Interesting point. Looking at Wiki there are actually few talls that we have drafted that could have developed by now.
1997:Mark Alvey pick 18, Robert Stevenson pick 47
1998:Luke Penny pick 14, Nicky Winmar pick 30 (did not know they played for us)
1999:Rob Murphy pick 13, Gia pick 32
2000:McMahon pick 10, Birss pick 26
2001:Power pick 10, Kieran McGuinness 42
2002:Walsh pick 4, Faulkner pick 17, Minson pick 20
2003: Cooney pick 1, Ray pick 4 (none other till pick 50)
These are the first two picks by the dogs as well as the top 20's
If we had taken talls instead of two of McMahon, Birss, Power, Faulkner and possibly Ray we could be a much better team. It must be asked why we refused to pick tall forwards or defenders unless the club had a way to stop Chris Grant aging and could then clone him to play at both ends.