Wall was seen gloating too much immediately after SDSR when the Army seemed to have got away with it. he then was rumbled with the manpower funding black hole which resulted in reduce to 82K. The Army will be too focused on regrouping and working out what exactly will be their role and kit to worry about the bigger picture of defence. Contrary to Backwards my observations have been that Stanhope gets on quite well with the other Service Chiefs.....however, the answer is most likely Houghton - a very good Joint man (who trusts the RAF even less than Cameron does!).
Whoever gets the top job is going to have to resolve the question of "who owns what capability" - does it sit with the owner of the biggest risk or the one who thinks it is his God given right?