Best always had the qualities to go up a league and be somewhat of a success, he wont ever be a top striker but in our Premier League he has the physical attricutes needed.
As for Newcastle, they are well prepared and seemingly now are rid of disruptive influences on and off the pitch. Colocinni and Taylor have forged a very partnership Cabaye in the middle of the park is an excellent player, and in Ba they have a forward who is more of a goalscorer than best but can also be physical.
Also they have got rid of the spectre of Shearer, countless managers have had their positions undermined by his presence in the background and in the eyes of the fans he was their only choice, since he failed the fans have now accepted he is not the managerial messiah and have been more accepting (not much but enough) of other managers.