Lampard won't go there, given the position they're already in and the lack of transfer budget. In fact, if he does go there it only proves one thing - that he is far and away more arrogant than even many believe and rates himself far beyond anything he's ever achieved as a coach would suggest.
Hassenhuttl as has been said is bizarre - leave a Southampton team he has kept competitive on a small spend and actually has some talented players, for a less talented group, with less prospects and less money, at a smaller club? Don't think so. Smith or Wilder probably feels about right, though I don't know that Wilder's style gels with Norwich's identity. Smith did well at Brentford so maybe.