The smartest thing Bruce did was to switch back to Rafa's setup after initially trying to change it to a 4-4-2 kind of a lineup. The things he has done on his own, like rotation or resting players, has been a disaster looking at the number of injuries they have picked up. I have not seen them enough to know for sure if any of the new players, or for that matter old players, have 'improved' their overall game. My guess for now, peppered with some bias, is that Newcastle is riding the Rafa wave this season, and as soon as Bruce tries to change it all up, they will crash like a house of cards.