Werner is clearly no more than 'an option' and not one which will help us. Brennan could do with some stiff competition. Maddison is easing himself out of the club it feels like. Deki needs some good competition. With Richy injured, Dom needs competition/we need a second striker (J Pedro at Brighton would be excellent IMO), as I think Wil Lankshear WILL be outstanding but needs the extra year or two. Our first 11 is strong, but I believe it is a squad game on match days, and given that we like to overpower opponents late, we need the same quality coming into games.
As for defence, for all the great things Romero brings as a footballer, he has to do better and lead. He is the World Cup winner, he is the Copa America winner, and he is the vice-skipper and well loved within the dressing room. His performances in that regard have not been good enough. Ange cannot do anything about that IMO.
I remember when Liverpool signed Van Dijk. I thought he was royally overrated (I remember when we beat Soton 4-1 away at Xmas 2016 and he was a lumberer)...I look back and laugh at my own ignorance, because he took on the challenge and has been (frankly) a generational CB. We got close with Toby and Jan, and the thing is, this club has always had great CBs despite the flair. Romero should be that for us.