I don't know if you can take 10 players with average ability and make them world class players. Guess it depends on what average is. Not only do they have to put the same practice time in just for making shots. They have to put in so much more for cue ball control. How to understand layouts, jumping, kicking, breaking and playing stiff safes. All which comes naturally to top players. I don't know about aiming systems but I do think they can help. Same with kicking and banking systems. However they are all systems that is just natural to top players. These 10 players would have to master everything that comes natural to others. Guess it could be done but it sure would be hard.
None of that "comes naturally" to top players. It's learned spending hundreds,if not thousands of hours at the table.