Get a decent assistant manager and set him to them, nay problemo then.
Have a fiddle about. It's pretty simple when you spend some time looking at it...I generally end up setting a (new) GK schedule as well as Centre-back, Full-back, Winger, Defensive mid, centre mid and striker schedules. Just adjust the sliders to the most important attributes.
However, it's a pretty pointless exercise until you can afford decent backroom staff...