TBF, Dier played CB in the 2nd game, with Wanyama serving as the DM. Still, the point is that the Monaco midfield outperformed the Spurs midfield.
As we head deeper into the transfer window, the reservations about Bakayoko & Fabinho seem to be growing. Yeah, they were a dynamic duo for Monaco, but at times they were more suited going forward instead of really playing DM/Holding, hence questions about their positional awareness. Heck, City cut them open in the first game, so it's not like either covered themselves in defensive glory.
Concerning Weigl, it would be an interesting gamble if we went in for him while he is injured a la Gundogan, although I'm rather sure BVB won't sell this window in any case (unless there was an exorbitant bid).