Well Grealish is different. Since he is agile can play easy 1-2s. Ofc Kane is a top striker but I think most of his strength or let‘s say his weaknesses are going to be exposed in our system. It‘s not like there’s always 10 players behind the ball when the Spurs play an opponent and it’s not like he is going to drop deep to play thru passes to Son,Bale or Lucas when there‘s a KDB, Gundogan, Mahrez and possibly Grealish in midfield.i suppose you could say the same for Grealish,the whole villa system is around him,how will he cope not being the centre of attention,i do think that he will fit in though
And before someone compares him to Lewandowski. Lewandowski is far more agile than Kane. Not Prime Suarez agile but still more agile than Kané at least when he was 28.