I don't think so. Spurs' form overall under Mourinho was top four....even more so after lockdown. That's despite having to make do without a recognised striker for a long period, with both Kane and Son injured. Even worse, he had Sissoko and Winks at CM. Winks is decent. But not with Sissoko alongside him. Hojbjerg is ideal. Exactly what Spurs were missing in midfield. With added leadership qualities. All for a bargain price. He may not be a stellar signing but he will improve the team immeasurably.
As to right back, Mourinho used a lopsided fullback system last season, with Aurier very advanced and effectively playing as a wingback. Only problem with that is that Aurier's useful output in attacking areas was negligible. He routinely found himself with a ton of space and time in promising positions but was incredibly wasteful. This is in addition to being something of a liability in defence. Matt Doherty may not be the greatest defensive fullback or wingback but he is an excellent attacking wingback. Given the same number of opportunities that Aurier had to score or assist last season, I think Doherty could easily help us to an extra 15 goals next season. Once again, he isn't a star signing but he is a huge upgrade who fixes an obvious weakness.
Spurs already have a smattering of star players. What we have desperately needed for a year or two is squad balance. Centre midfield and right back were gaping holes. Next on the list is a back up striker. What's encouraging for Spurs fans is that Mourinho has identified what's needed and has given Levy a gettable list of players. Premier League ready players at that. Not sexy. But smart.