A faster centre back, who's comfortable in a higher line with other good defensive attributes is a better player, period, than the likes of Lindelof. Therefore, it's not about whether Ole can coach a certain system to exploit a high/counter press, it simply means he will have a better player on his hands, who can bring other qualities.
Having a 'faster centre back' doesn't automatically mean we will start playing gung-ho high pressing football but it will certainly help us and the team. Yes we have Bruno and Pogba, who are fairly high risk ball players but you think they enjoy having to zonally track runners deep into their own half a lot of the time? That's a direct result of the fact that we play two DMs to protect the backline, who are in a fairly low defensive line because they're vulnerable in open space. Part of the reason of why they are so 'high risk' is because we're slow to press high as a team so their passing choices and timings are limited because the opposition has regrouped or that we're not able to sustain pressure. There's a gap between the defensive line that is conservative and the attacking line, which wants to be expansive.
It's completely idiotic to argue against having a better player and then extrapolating how it's going to be detrimental to our current team/style of play.
Well, I haven't. I spoke about the Villa game and when you said Leeds could have scored 4/5 against us, I then said they could have also done the same against Liverpool.
My initial point, which has been totally lost, was that I didn't agree with the fact that Ole plays with two holding midfielders because of a lack of pace at centre back. You only have to look at the protection Liverpool's centre backs had with Henderson, Wijnaldum and Fabinho - three players you'd probably say who are better at defending than attacking. Regardless of pace, you need protection.
Time will tell but I don't think it's the end of the world if we don't get a quick centre back, and even if we do, I don't think it will change the way we play much. Think Ole will always want that solid midfield base, especially against the more challenging sides. We've even seen Pep slightly adjust his midfielder, favoring two holding players, at times, rather than his traditional 6 and two attacking 8's.
Even if Ole decides to stick with two DMs, depending on the calibre of the player but then yes, a faster centre back will change 'much' as long as you're being realistic. 5-10 yards higher in the pitch is a massive difference defensively and offensively.
I'm not a fan of two DMs and neither am I of Lindelof, who prefers to drop 30 yards into his own half than engage at the source but people will always quote stats about how great we are defensively and therefore it doesn't need addressing. If that's the case then you can argue the same that we don't need a right winger or a centre forward considering how 'prolific' we've been. It's meaningless stats because we defend and attack as a team. Wherever there is a weak link, we need to consider what impacts it has.
Of course if it was a choice then a centre forward, right winger, centre back and then centre midfielder would be my order of priority but we shouldn't underestimate the subtlety of individual quality.