Keeping Sanchez is a huge gamble for Arsenal and I'm interested in seeing how it is going to play out.
Realistically, anything less than a major title challenge could see Sanchez and Ozil leave on a free next summer.
There's a realistic chance that they could start next season in the CL with a much weaker squad than now.
All very good points, its not a good position to be in, but taking in an extra 40m and losing Sanchez only makes a difficult situation a lot worse.