It's not a conclusion, it's an assumption. And we can approach Ten Hag and find out, before sacking the manager.
1. Approach target manager
2. If they accept, sack Ole and get them in, if they reject, move on to the next target.
Now if they don't want to join mid season, fine, try to secure them for the summer.
But if we have to wait for Ole to leave us out of CL next year, then we make things 10 times harder when it comes to attracting both a manager and players.
We can't fecking sit here and wait for the worse to happen, because "largelyworried" here made a fecking reasonable assumption. Our pants are on fire.