this is a tip in editing the values in "staff.dbf"
just try searching the name of your staff then change the values. 0 being the best and 10 the dumbest. you can also change the age of the staff so he wont retire anytime soon. this actually about the specialty of a particular staff so here's my simple tip..
Asistand head coach
0 = none
4 = league insider
assistants
0 = none
1 = bigman
2 = shooter
3 = rebounding
4 = defensive
5 = guard
trainer
0 = none
1 = arms
2 = legs
3 = arms,legs
4 = torso
5 = torso,arms
6 = torso,legs
7 = entire body
scout
0 = none
1 = n.america
2 = europe
3 = africa
4 = asia