Donald Young is definitely getting closer to ATP level, he took Djokovic to 4 sets at last years' US Open.
I watched that match. Djokovic was half asleep in that first set. When he finally got going he battered Young off the court. I think Young won 4 more games in 3 sets.
Young has a good all round game but it is still a boy's game in a boy's body - and he definitely still has the competitive match-toughness of a boy. He doesn't need wildcards, he needs to grind his way up to the top and earn his stripes lower down, as he is started to do, I am pleased to see. Those battles down there will toughen his matchplay up and make him a much more solid competitor in future.
They've attempted to take too many shortcuts with him and it's been disasterous. I dare say Miami will give him a wildcard, because it's IMG and so is he, but they should be kept to a minimum - or give him WC into quallies, perhaps. Attempting to parachute him into the top flight will not work.
Having said all that, I hope he does well for himself and makes it onto the regular ATP tour in the next few years.