For me, the positions with the most question marks over them remain no.6 and no.12 (captain obvious)
Haskell promises lot's, but at the end of the day he seems a bit 'Jack of all trades- master of none', line-out is a bit rubbish at the moment because there are no options in the backrow, his carrying is pretty decent- but not anything special and his ruck work is still a bit suspect (giving away a few penalities) overall I just feel that the England backrow is full of bulky players, where line-out and speed in the loose has been sacrificed, and yet the ball carrying remains nothing of much note :/
If this is the current situation, then I cannot fathom why Ewers is not involved- the line-out won't get any worse for his involvement and he is much more powerful in ball carrying and clearouts than Haskell. I still think we are in a position where the pack is not specialised enough and it would improve if there were specialists involved like Kvesic who is quick and good at the breakdown- then offset the lack of carrying with a specialist ball carrier.
I surmise that the back row is not balanced, and never will be unless either we get a good line-out operator at 8 (ditto Hughes) allowing Ewers and Robshaw/Kvesic to play or Robshaw is dropped for Wood/Croft then Kvesic at 7. There, I said it.
At 12, Burrell will never be international standard because he doesn't make good decisions under pressure and doesn't offset these by dominating any other part of play (Tuilagi-esque carrying or really good distribution). TBH I'm not sure he'll even be first choice at Northampton for much longer. 36, although also making mistakes, does at least compensate somewhat with some potentially int standard qualities of distribution and kicking (still unsure though). Time to roll the dice imo, and either give 36 a few games or bring in one of Slade/Eastmond/Tuilagi or some other young whippersnapper (Hill/Stephenson?)