That excuse shouldn't fly at all.
He had all 3 of them fit and available at the end of last season, in addition to another goalscorer in Lukaku plus a mid in Herrera. You know what happened? We went on worst run of form this club has been for 57 years, when we closed out the season with 2 wins in 11. Back then the excuse we heard were:
A) Too many 'toxic' personalities in the dressing room who need to be booted out to reset the culture
B) Players are too tired to sustain 'Oles high intensity football' over the course of season due to being coached by Mourinho
C) Pre-season will fix all of this as it will allow to tactically embed his ideas and prepare the players to play 'high intensity football' for the whole season
Well, toxicity has been cleared, pre-season went and gone and nothing has changed. We started this season with our worst ever start in 33 years and look set to end it in an even worse fashion.
When will people wake up and smell the coffee? No amount of money will make Ole a good manager, all it will allow him to have few more players who can win games on basis of individual brilliance and hence earn him a little longer rope. We'll continue to yo-yo around like this with no gameplan or pattern of play under him.
Those who are latching onto injury crisis need to look at what happened in previous season, even with a fully fit and better squad he couldn't do much. Even in current season, those injuries are not down to mis-fortune. You can squarely lay blame on Ole for mismanagement of those players which has resulted in extended lay-offs. For each of Pogba, McTominay and Rashford, their injuries were aggravated due to being over-played when they weren't completely fit.
I find it staggering how we still have a sizeable contingent of our fanbase who is ready to handwave all of this over blind sentimentality for Ole, a manager who has made every possible feck up a manager could.