Zangy, I would buy him. The 24T youth is often a super trainer, an as you have room.. another ST never hurts! I have been buying my youths the past couple seasons (I get two a season now, woot! ) and they have all been pretty good players, and they are still on my team.
But there are other ways to spend T... you could do some Free Agent buying and selling and work up your $$ some more...