I like Mark Warburton but I think he's made errors in his recruitment this summer. If you look at Rangers and Celtic squads from the past there has always been a strong Scottish core in the side, normally players cherry picked from fellow SPL clubs.
His recruitment policy got them out of the Championship and he's followed the same pattern, bringing in Lower League English based players and a few high profile players. He needed some good SPL players to build the team up and add a few special flair players to give them that extra edge. Nothing wrong with Waggy, Tavernier etc, but it's pointless bringing un qucik fix players like Kranjcar, Barton and Hill. Even signed Senderos who I thought had retired years ago!