It's better to concentrate on training center ad get it quickly to level 10, taking also care of stadium, upgrading it at first possibility. Before youth center level 10 there is really nothing serious coming, but at least he can buy some better youngsters born in academies and they would develop normally in TC10. But there is no point having YC level 10 with poorer TC.
And... watch some top teams (internationally) how to use training points. Only defensive players(defenders and DM) need different skills trained. Keepers, mids(offensive) and forwards need only main skill and some tactics about 1.5 balls, training them other skills is just waste. Those "universal" players are wortless on field as they are good in nothing.