Hmm lets see:
Bad: Nkoudou, Sissoko, Janssen, N'Jie, Fazio, Stambouli, Soldado, Paulinho, Capoue, Chiriches, Chadli, Lamela
Good: Dier, Eriksen, Dele Alli, Alderweireld, Son, Wanyama. I'm going by post-Bale era but you can add Vertonghen and Lloris as well I guess.
More shit players than good players.
I think you are missing the point. Levy does not scout the players. He pays for them. He tries to buy low and sell high which he does quite well.