a bad player with high experience is still a bad player, you should see it more as a bonus on a good player. Naker is right, 144 minutes means horrible game shape, so while you do this your player would not help you at all.
but i like the setting, because it could be also a guideline for a giveup season :) especially newbees in lower league, tank sometimes for a draft position with one or two talented guys who they concentrate on training.
So would you play those guys, in the other "competetive" matches to gain experience to develope then in Xp, or maybe even in the scrimmages.
PS: personally XP is very nice to have, especially in the last quarter the performance should be better - and old rooster don't work that bad even when they are a bit weaker in skill.