The problem is our fans are obsessed with signings, when in truth the more critical thing for United is our style and philosophy (which has been turgid since Fergie retired). I sometimes wonder whether some fans get most of their enjoyment from merely signing the likes of Di Maria and Falcao, irrespective of performances or fit.
The United fanbase are turning into the Liverpool fanbase pre-Klopp in my view; obsessed with bringing new players in and when they did it was "100% our year" and when they didn't it was "our owners are to blame".
Ole for me has been a mirror of Klopp at the start of his Liverpool tenure. They were not the most ambitious from a signings point of view, but what they did set the foundations for a team that would be successful in 2-3 years time. They got rid of players who didn't suit his philosophy (Benteke vs Lukaku, Allen vs Fellaini, Skrtel vs hopefully Rojo) and brought in players who weren't like for like but did suit how he wanted to play. Firmino moved centrally to replace Benteke; just like Rashford will play solely centrally to replace Lukaku.
Liverpool fans likewise had no clue where their goals were coming from. Liverpool's front three in the league on paper had a 10 goal a season player in Firmino (see Rashford), a 10 goal a year player in Mane (see Martial) and a 5 goal a season player in Origi/Lallana (see Lingard). Despite that they scored 13 goals more than we did last season and conceded 12 less, with a much worse defence. That was because they started to have a cohesiveness that you can't quantify on paper. When you're playing with this cohesion goals will come - Can, Milner, Wijnaldum and Lallana scored 26 PL goals between them that year... Who'd have tallied that up on paper on 9th August 2016? It's absolutely possible for McTominay, James, Greenwood & Fred achieve the same in a similarly functioning team (with Martial/Rashford at 15 each and the remaining 20-25 goals split between Pogba, Mata, Maguire, Lingard).
It's worth remembering that in Klopp's first season Liverpool finished 8th, despite being in charge for 90% of the season. Ole finished 6th despite inheriting a similarly poor team with less time to turn it around. Since then they've added 2-3 players each season that aren't just available names, they're specifically the player the manager wanted and if the player wasn't available, he was prepared to wait. When Van Dijk wasn't available he didn't bring in Michael Keane or David Luiz. He knew who he needed and overpaid several months later to get his man. I can see a similar situation occurring with Ole waiting for Sancho rather than bringing in Fernandes/Dybala for big money where either their heart isn't in it or style isn't what we need.