I remember getting stick for saying his bottom level was that of a championship player and I still stand by that.
When he’s on form he’s a good outlet and he can be a threat against anyone but he’s just not that intelligent or technically consistent enough to carry out the fundamentals to a 6/7 out of 10 every game and be a reliable focal point the team can play around.
What irks me is that people compare him to other great youngsters of the past and say they too had to iron out their deficiencies - trust me from a coaches perspective he is so raw at this age when most great footballers or ones of the quality you’d associate with United are technically already pretty much fully formed by this age and they will add certain weapons and refine certain techniques but predominantly they can be relied upon to control a ball, pass generally at the right time and they won’t lose the ball 7 times out of 10 each time they have possession. He’s much more raw than Rooney, Ronaldo even likes of Torres, Shearer, Cole etc at the same age.
Ronaldo at 18 or Rooney was technically on another planet to Rashford in terms of their consistency on the ball. The thing they had to mature was that decision making but even then we are talking about guys whose decision making was way better than the average PL footballer and it was on the European stage against likes of AC Milan where we needed to see them improve. Rashford decision making most of the time is not better than your average relegation battling striker.
His only chance of making it is being humble and being a late bloomer. It’s not impossible but he needs a dose of reality very soon to put him back on a good development path otherwise he’s going to sink fast.