Who will open for England?

Alec Stewart, in BBC Sport, picks his candidates for the role of England Test opener, in place of Andrew Strauss.

I have no doubt that Trott and Bell have the skills to succeed as openers, but why would you want to move them from a position where they have been exceptional performers and potentially weaken an area of the team that is functioning well? My preference would be to choose someone from the county game ... The candidates at the top of the selectors list will possibly be Hampshire's Michael Carberry and Yorkshire's Joe Root. Beyond Carberry and Root, a couple of others who could also be in the frame are Varun Chopra and Nick Compton.