I think it's cos on paper he ticks a ton of boxes:
- PL proven
- Punched above his weight at Brentford on a low budget
- Likeable, good communicator (strong English)
- Good at coaching and improving players
- Used to working in our type of structure
- Flexible and pragmatic (opposite of Ange)
From a logical perspective it did make a lot of sense. Most non-Spurs supporting mates of mine thought it was a really solid appointment, as did most pundits. With hindsight they'll all slag us off if it goes to shit, but at the time it was widely seen as a fine, if unexciting, appointment.
However all of the above "on paper" stuff massive hinges on ONE key point - the most important box to tick of them all - and that's "is he capable of changing his style and adapting to the expectations of a big club?". If he can't do that then nothing else matters as he's ultimately gonna lose the fans and players regardless.
Frank's almost the opposite of Vincent Kompany. Failed at Burnley in the PL cos his style didn't work with inferior players, but at a top club he can actually fulfil his stated ambition and his model upscales really well; he has that captain/top level/championship winning mentality. If Frank was in his position he might've kept Burnley in the division where Kompany failed, but it looks like his model really isn't scaling up half as well to a big club.
I think Frank was a reasonable punt but starting to look like a worse one week by week as he's not adapting quickly or effectively enough, and it could well cost him his job.