Well of course JB wouldn’t have said that to Edwards in his interview, but there might have been a niggling doubt in the back of his mind that taking such a big risk on appointing a manager with no previous experience could get us into trouble later on in the season. It would only be natural for any chairman to think that way, as did many on here when his announcement was made, and many were saying, “Joe Edwards? Who?”
(I don't understand what point you are trying to make? In your post you said that "... maybe JB factored in that relegation might be a possibility". If all that you meant was that there was a possibility that the appointment wouldn't go as planned. Well, yes agreed but I'd suggest that is no more than a truism. I imagine that the Blackburn and Sunderland chairman have a similar concern about their newly appointed managers).
Thing is, playing Rowett’s ‘ugly, defence first football’ as you call it, didn’t help us before Edwards replaced the manager who employed that style. Against the so called better passing sides in this division we got outplayed and beaten by Norwich away, Leeds at home, Swansea at home, and in the cup lost 4-0 to a second string league 1 Reading side.
(We gained 15 points from 11 games under Rowett this season. If we had continued that rate of return we would finish in a comfortable mid-table position).
With the exception of Coventry at home and Ipswich away, I think under Edwards we’ve pretty much held our own against the sides we ended up losing to. Now, was all of that just luck on our part because the opposition were having a bad day, or did we do better against them because we were playing better football and matching them? I like to think it was the latter reason rather than the former.
(And the end result was we lost those games)
Of the games we lost, many were losses of no more than one goal which separated both sides, and losses like QPR and Coventry away were more to do with the players making silly individual mistakes which cost us in the end. Mistakes that Edwards is fully aware of and is trying to get the players to remove from their play.
(... And to repeat, the end result was we lost those games.
I imagine that any manager at any level tries to eradicate "silly individual mistakes". I'm pretty sure that Rowett would have tried to do that. Edwards hasn't suddenly introduced a brand new concept to the club).
Had Rowett stayed on, would we have improved our all round game? Personally, I would say no. We might have cut out the silly mistakes by booting the ball into row Z instead of back passing a header into the path of an opposition forward, but would his defensive football have still turned defeats into draws, and draws into wins? Based on the levels of improved player acquisitions in many Championship clubs this season (players we could never afford to buy), I would say the outcomes to these lost matches would be the same, if not significantly worse on the goal tally front.
(If, against Hull for example, Harding had put his header into Row B, instead of trying to play a cushioned header to Tanganga, other things being equal, we would be one point better off. You might say that was an individual mistake. Yes, it was. But the more pertinent question is did Harding attempt the cushioned header because he was trying to carry out Edwards' instructions which appears to prize possession above all else? Would Harding of tried something similar under Rowett? Obviously no way of knowing but I believe the answers are 'Yes' to the first question and 'No' to the second.
I'm sure I could find other examples if I looked)
End of the day, we can all want Edwards to set up and play the way we think he should in order to get us out of the shit we’re currently in, but short of JB ordering Edwards to change his footballing stance, he’s not going to. Him and us just have to hope that the players can turn this slump around (as they did over Christmas) and steer us to lower mid safety. The return of key players would help us tremendously and getting better, fairer referees wouldn’t hurt us either!
(We all want Edwards to succeed but imo there is no point burying our heads in the sand. You seem keen to blame our poor results on anything but the process. I think otherwise. I think that this emphasis on the process - and radically changing our playing style - is part of the problem. When (if) we are safe that's the time for radical change. Imo what we need now is the coach to be more pragmatic about our players' capabilities.
I also don't buy this idea that our luck is any worse than any other clubs'. Look on any fans forum, and 9 times out of 10, there will be a thread(s) bemoaning their luck with injuries and the bias shown by referees against them).