Rangers are fading a bit due to difficult financial reasons and the fact they are in administration but I think the current Celtic side will become a good squad in the next year or two.. yes I might be slightly biased as I support Celtic as well as Chelsea lol! The likes of Izzaguire, Wanyama, Kayal, Forrest, Matthews, Hooper, Stokes, Ki, and Commons could all cut it in the PL imo and they will get better as they are only like 20, 21, 22, 23, 24 except Commons and Izzaguire who are 27 and 26 I think. Also there are a few Rangers players who could also make it in the PL, Naismith, McGregor, Davis and Goian maybe. Jelavic was an ex Rangers player and look at how well hes doing and Bougherra could of defos been in a top 8 team in the PL if he didn't go to Qatar for money as well. Scottish football in general is poor but some of the players in it aren't.