So, players / seasons that weren't selected?
A few guys I noticed (and I didn't have a big board or anything):
Mo Cheeks, 1986: 15 points, 9 assists, 54% shooting, 1st Team All-Defense
Vin Baker, probably 1997: 21 points, 10 rebounds, 51% shooting
Marques Johnson, 1979: 25.6 points, 7.9 rebounds, 54.4% shooting, 1st Team All-NBA
Carlos Boozer, 2007: 21 points, 12 rebounds, 56% shooting
Other guys who could fill a role: Mookie Blaylock, Terry Cummings, Terry Porter, Dan Issel, Michael Redd, and one of my binkies, Jamal Mashburn