I tend to lean with the method that Sweed uses.
Getting more granular requires much more homework and routine monitoring on your part IMO. It's not too difficult, you comb the rosters and identify target players; change their positions and observe their new potential, then decide on a course of action. Checking back at certain intervals to see how it is working is important. Oh, as Sweed says - typically it really only applies to a select few high potential players you have in the minors. YMMV.
If you are playing with coaches, they can make a substantial difference in development too.
It
can get rather tedious when you run a team with a full minor league system though!
