If the Rs stay up then Redknapp probably retires having achieved his goals. If we're relegated then he steps down anyway. On that basis I say stick with him until the end of the season, but in the meantime start doing our homework on good up-and-coming young foreign managers in the same way that Southampton have done successfully with Pochettino and Koeman.
I don't know how dire the situation really is if QPR are relegated. There's enough in the media about FFP and substantial fines to assume there will be a difficulty of this ilk. But I have to also believe that the club has a contingency plan in the event of relegation such that none of this would be a massive surprise to them. If the only plan is to gamble by spending yet more on players this window then these people aren't fit to run a bath, yet alone a football team.
Back to Redknapp. It disappoints me that so many on here are against him, and have been since the early stages of last season (or perhaps earlier). You may not wish to give him sufficient credit for our promotion, but you only have to look at where the likes of Reading, Wigan, Bolton, Fulham or Cardiff are, or even teams that have challenged for play-off places in recent times, like Brighton, Blackpool or Forest, to know that actually we've done OK by comparison.
Margins are small in football. I reckon if we'd picked up 3-5 points on the road to date, many of his detractors would be silent for now, regardless of their bafflement at some of his selections in certain games.
In the opening pages of Warnock's book he bemoans the fact that football managers and prime ministers have the occupations that most people feel they can perform better, despite zero experience and little qualification. I'd like Redknapp to have made a number of different decisions to date, just as I'd liked certain members of the team to have made different choices in certain games, but on balance we're doing OK, which just about meets my expectations for this season.