Beware false messiahs. It's no wonder that Leeds fans have responded so enthusiastically to Nice Guy Brian - Avram Grant would have been a relief after the Warnock - but, if we are honest, the former Reading manager has done nothing to deserve the plaudits yet.
True, he has said all the right things. True the team performed well against Burnley. And true NGB has started with back to back wins. But look a little deeper and it is easy to shrug and ask, 'So what?'
The first 45 minutes against Sheffield Wednesday were pretty dire and Leeds looked second best for much of the game. The second 45 were much better, but Lionel Varney has never been a goal machine and is not the long term answer to the problems Leeds have with scoring goals.
The Burnley game was a return to type. Leeds won at home. No great surprise there, given Burnley's position in the table and the fact that they were without their leading scorer and best player. The victory involved a single Leeds goal, and it was not scored by a striker.
Would anybody have been surprised if Leeds had won those two games with the Warnock at the helm? Of course not. The home record, the last couple of games apart, was good. Bloody hell, Old Big Gob's team beat Spurs at Elland Road, and victories over the Owls and the Clarets hardly compares with that.
Where Leeds have struggled this season is on their travels. So a game away to Birmingham represents McDermott's first real acid test. And the stench of sulphur is just marginally stronger because the Warnock masterminded a win at St Andrews earlier in the season.
To be fair to Brian, like his Monty Python namesake, he is doing his best to play down all the messiah bunkum. And with good reason. Messiahs are crucified and NGB would like to avoid that fate!