Yeah exactly.
I've started to use this by "assigning" what has been stored in a game I missed. Actually pretty useful. Like a DC can be a bit hard to practice passing and creativity with, and if you had a fast trainer from 18 after a few years he will fall behind pretty much in those areas. But if you just run one drill, say pass run shoot, he will get 2-3% in those areas.
Haha, it will not have a big effect I know, but if you want to micro managing things, this is yet another thing you can do... ;)