I really don't agree, a lot of players in the top 50 have a good game but to be top 10 you need to have the tennis brain too and be able to make the two work together. Tiafoe has the game for sure although i think he's a bit too ballbashy at times but he just doesn't have the brain to match it, he needs better shot placement and shot selection. He gets too predictable and gets exposed too easily by the better players. You almost feel like he needs to be on his A-game the entire match to stand a chance and no player can be zoning every match, sometimes you need to let the tactics do the work, not just the game.