While they are older than 18 and 19 year olds, they aren't useless. Amraoui could use OD/1v1 Guards. As for Bruno, I don't know if you want to make him into an SF or PF. Regardless, you might want him to get a pop in OD, then move onto 1v1. If you want to go the SF route, then I suggest getting him a couple pops in JS and ID.
They aren't that old, and they're potential isn't so low that it can't be utilized. I know a guy in D3 that was able to use a couple of his trainees that had star or allstar potential.