Ross reminds me a bit of Dan Jackson in the early part of his career - mature body, hard working, great endurance but tried to do things with the ball he wasn't capable of (think of Dan trying to hit up short kicks to target - couldn't do it).
Ross' strengths are winning the ball and endurance (not as quick as Jackson though). Can't hit short targets either, so like Jackson we need to keep him to his limitations - see ball, get ball and give off or kick long to set positions (never short). Dan became a great player knowing his limits and there's still time for Ross too. Hardest thing is to win the ball and Ross can already do that.