Warrior General Games

please tell me should i keep him or not...?

http://goallineblitz.com/game/player.pl?player_id=1251925

and if i do keep him, do i still have to put SP's in carrying?

No you shouldn't keep him. It would be best to retire and get strength to the 74 cap by slow building. After doing that get carrying to 60 and then work on speed and agility.