First guy is a keeper. I would train passing up to average and then switch off training the defenses until both are at at least respectable. That would be a good start. As for the 2nd guy... Sell him if you can. The awful rebounding sucks a lot and his potential isn't great either. If you can't sell him I would just bring him along for the ride with your other trainee and get him some OD training but he will never be a good rebounder.
Murray/Harris/MPJ/Grant/Jokic - 2020 NBA Champs