I just don't see how it can't be both responsible for this mess and I'd add the board to it everyone has played apart in how we've gone from title challengers every year for 25 years to nowhere near in 5 years.
Route cause of this was absolutely no succession plan for Ferguson and Gill when they decided they were to go and it was a double whammy as both went together at short notice it was obvious Woodward would take over Gill from the moment he came into the club he was the Glazer guy but there was no plan for the management.
Fergie was 71 when he announced his retirement what sort of organisation doesn't plan for the retirement of a 71 year old key member of staff changes could have been made while he was still in position and plans developed with him there but I think everyone was just kicking the can down the road knowing full well they'd be leaving it to the next guy to sort.
They made a terrible decision to appoint Moyes and are still paying the price today a poor quality squad has been assembled these aren't players that fit the Utd traditionals and managers that don't fit those traditions have been appointed.
One thing I'd like to know is when Mourinho agreed that new deal last season surely the plans for the summer were discussed. Did he say he wanted to overhaul the squad and sign some senior players and the club agreed to it or did he say he'd go with their plan just to get his contract done and his salary protected. I just don't see how 6 months down the line the club and the manager can be so far apart of agreeing a transfer strategy.
As for players simply put a squad has been poorly assembled by various managers over a 5 year period.
De Gea, Rafael, Rio, Vidic, Evra, Valencia, Cleverley, Carrick, Welbeck, Kagawa, RVP that from memory was pretty much Fergies last starting XI for big games in his title winning season. On the bench we had players like Scholes, Giggs, Hernandez, Rooney, Nani, Young Fletcher, Evans etc.
So of the XI starting positions in 5 years and god knows how much money I think we've upgraded Cleverley & Welbeck with Pogba & Sanchez. The title winning team was sold off for pennies/retired and largely replaced by players who are technically inferior, mentally weaker and sadly a few mercenaries who took us to the cleaners for a pay day because their current club wanted them out Di Maria & Schweni.