Frankfurt will lose their sporting director in Bobic(Hertha) and a key front office manager(regarding the football side of things) in Bruno Hübner as well as another front office guy who was close to Hütter.
Gladbach also still even has a chance to qualify for europe and has a good chance to make it ten years in a row finishing in the top half of the table joining only Bayern Munich and Borussia Dortmund.
BTW: The deal is done and Hütter will sign for three years while Frankfurt will receive a whopping 7.5 mil euros.
Considering they lost one of the hottest coaches around, and to a rival no less, Gladbach actually comes out pretty well when it's all said and done here. Hütter's track record at Frankfurt, by and large, is pretty positive looking. Europa League semis in 2018-'19 and only knocked out by Chelsea on penalty kicks, a shockingly easy Champions League qualificiation (at least, it would appear) for this season...the only question mark is from last season, but even then it's pretty easy to understand why a team who was largely led by an attacking trio that was all sold in the same transfer window might have some struggles the following season. And, even then, most of their struggles were more defensive in nature, which is something that bears a closer bit of analysis, but if Hütter gets to work with the backline Gladbach currently has next season - a backline featuring four internationals - then he should be on the positive end of some good defensive success next year.
The one thing he won't be able to count on again next year is benefitting from six own goals. A couple of them were inconsequential, but four of them helped lead to getting points from those games. But given the general proficiency of Frankfurt's goal scoring in the last three seasons, that probably won't be a problem. Obviously this is a big sting to Frankfurt, though, at a point in time where it looks like the club is on that upward trajectory befitting a team from an economic powerhouse like Frankfurt, the city, is. Given that they did well in replacing Kovac with Hütter, I will trust the club will handle the replacements they need to make well enough. And it's a positive for the Bundesliga to have Frankfurt looking like a regular contender for CL qualification spots moving forward. It's always boggled my mind why Frankfurt isn't a bigger club given the economic resources of their location. They should be a huge club. But I'm not from Germany, so some of the nuance as to how and why things have been the way they are is definitely lost on me.