Patience is indeed important. If you have a look at the first team then we've got 4 players who are first team level ie DDG, Maguire, AWB and Pogba. We might say that we'll be able to sort the LW with the players we've currently got. Surely James, Martial or Rashy could do that. However that is all. We've got a couple of players that can be squad players (Lindelof, Tuanzebe, Shaw, McT) but that's all folks, the rest are shit
Under such circumstances its impossible for United to be sorted in one transfer window. Hell, we'll probably need half a decade to sort this problem. Considering that United will need ample money to sort this mess then we have to qualify to the CL as many times as possible either through top 4 (which is kind of impossible) or through the Europa league. Therefore the manager need to bring some positive results by working with what he's got even if the method he does that irks fans (defensive football etc)
I don't think Ole can do that.
A- He naively dismantled the team without making sure that the players he's selling were replaced first. The 'sell first only for the club to be unable to find adequate replacement' trick is as old as football itself. Ole fell right into it. Which is no surprise considering his lack of experience as manager
B- Ole's impact on the pitch was largely disappointing. He keeps rambling about fitness for nearly a year and yet most of the team is already knackered. Players are getting injured even during warming ups these days. Meanwhile his tactics are fount lacking while his obsession with pace is turning us into a one trick pony.
C- Ole's obsession with British players will mean that our entire budget will be blown on 2-3 players per year. That would take us ages to build the squad and by the time we sort one problem 2-3 new problems will crop up
To conclude yes, we need patience but we also need a manager whose got enough tactical awareness to excel despite having limited resources. A person who can tweak his philosophy around the players we've got and make this weak United punch above its weight. I can't see Ole doing that and the results kind of support this.
I also think that all this positive talk about his transfers is a bit OTT. First of all, players need time to be judged correctly. The likes of Bailly, Jones, Anderson, Shaw and Lukaku all had a very positive first season with us. Secondly Maguire was Mou's target (ie we've been scouting the lad for months prior to Ole's interest in him) while James was recommended by Giggs.
