What strikes me as bizarre and counter-intuitive now is the supposed decision to keep him until the end of the season, if this has been calculated on the basis of preserving the man's dignity and respect within the club, and to the outside footballing world, and then subjecting him to the unpleasantness that will ensue after the Norwich game, if there has still been no announcement by then. It should not be forgotten that this will also be the last home appearance for several members of the squad. It would/will be a deeply unseemly, sad way to sign off, wretched season or not.
For the love of God announce it before the Norwich game. There will be palpable relief and we may even get a result on the day. I'm sure in that scenario that 99% of blues would approach the game bearing in mind the sensitive circumstances prevailing and see out the day if not in a positive, then at the very least, benign manner. The need for protests in that scenario are completely nullified. And, I'm sure Martinez will be no less dignified and respectful, in whatever statement or comment he wishes to make as his final act with the club.
You are absolutely right, for whatever reason the board gambled on getting through to the end of the season and the gamble could not have gone much worse. I do not know the reason, but I would speculate one of the following;
1) As part of the purchase agreement, it was agreed that there would be no substantial or managerial change until the summer, where they would be reviewed.
2) The club felt he was the best man to lead us out at Wembley, and putting a caretaker in would be undermining our chances.
3) They hoped they would get through to the end of the season without too many problems and could re-evaluate.
4) Contractual terms on Martinez's contract reduce the amount due to him at the end of the summer.
5) They want(ed) to pursue targets quietly outside of the glare of the prying media.
I know we have been interested in De Boer for quite a while and have been banging his drum for a number of weeks from when I knew he was on the list. I sense we are waiting on Mourinho. It is not easy to explain but sacking Martinez would set in place a chain of reactions that could make things more difficult. To summarise;
1) Everton Sack Martinez
2) De Boer asks if we interested.
3) Everton hesitate wanting Mourinho.
4) Mourinho hesitates as he is waiting for United's decision.
5) De Boer is then under pressure waiting for Everton, and may well go to Valencia/Commit to Ajax.
All of the above is very plausible. Once the first shot is fired a process will begin, I just hope they are looking to avoid that until they are sure of how they wish to proceed.