I don't think it is a great idea for new blokes to try and train sfs, they are real tough. Stick to guards.
The first guy Amrie bin Abd Rahman (14092529) is real good, but is 19 and has low potential.
The second is just ok. The second guy has low potential, bad defence, poor height and atrocious stamina and rebounds. For less than $100,000 you could get a better guy but if he was an original team player you may want to keep him because the extra money will be good.
And the third is real bad. Sell him. People pay too much for potential so you may do well.