Ole is planning long-term and with so many fans already against him, he will not look to have confrontations with the board. At the end of the day, they will sack him pretty much like they sacked all the "world-class", "proven", "winner" managers that we had.
The idea of him being "used" is not accurate. The board haven't been exactly the best in terms of relationship with the fans etc or by showing a proper structure to the way the club is run, but this is the same board who got Pogba for a world record fee, Maguire in the biggest deal for a defender, Wan-Bissaka, Ibrahimovic, Sanchez, Lukaku, Mkhitaryan, Falcao, Di Maria, Matic (I am just mentioning the "big" names we got) So as fans we cannot really say we haven't been spoilt with "known"/"proven" players over the past 7 years but the main issue is that the core of the squad was aging (Carrick, Rooney and co) so we needed someone to build that "core" again, all of the previous manager never did that, so we are where we are today because of that.
The original issue to this shithole Ole is in dates back to 7 years when the club thought that the players SAF left were good enough but in fact it was SAF's tactical, experience and management brilliance (+ the signing of RVP) that got us that title. A squad overhaul should have been done back then. Instead, every manager that came (post Moyes let's say as he only got Fellaini back then) continued their shopping spree of players without doing a proper clearout (or they shipped the wrong players out and keept the shit players in).
The only manager of all this bunch who made us watch and play entertaining Manchester United football was Ole (albeit in patches due to squad young age, little experience and little depth), he had only one transfer window to operate in, he is giving a chance to the squad players this year to see who to ship-out and who to keep. We all have been asking to have such kind of manager who understand the United way and at the first sign of trouble, we turn against our own, it is very frustrating reading some of the comments here because people just want instant success, we are in the phase now where older fans were when SAF took charge of the club, success did not come in one year but was the accumulation of experience, learning from mistakes etc.
We should get behind Ole and let him finish this season the best way possible so stop creating threads to undermine our manager.