As a doom and gloom merchant (purportedly), I think much will depend on how se fare on Thursday night. We need to win in Bosnia because our home form is horrendous. If we lose on Thursday I see another defeat looming on Sunday. Indeed, it wouldn't surprise me if win on Thursday, we then win on Sunday; draw on Thursday and we then draw on Sunday; lose on Thursday and Glasner will be out of a job come Monday after an abject performance against the League's bottom side on Sunday.
We have a host of tough league games after Sunday including away trips to Man U, Liverpool, Man City, Bournemouth and Brentford (and yes Spurs who will probably enjoy a new manager bounce against us). Our home matches don't look much better with games against teams we struggle against such as Everton, Leeds, Newcastle and not to mention Arsenal on the final Sunday. There's also a 6 pointer at home to the Spammers who are looking a lot better than us at the moment.
Relegation is not a distant prospect given the way we are performing and who we have yet to play.