Former Manchester United manager Jose Mourinho has said coaches need structures in place to support them as he broke his silence following his sacking by highlighting the difficulties he faced at the Premier League club.The Portuguese was sacked as Manchester United manager during December, with the team going on to since win six straight matches under the caretaker manager, Ole Gunnar Solskjær.United were adamant that Solskjaer was an interim appointment, but he is now a serious contender for the job, though Mauricio Pochettino remains the favourite if he can be prised away from Spurs.”I keep saying this because people don’t know what’s going on [behind] the scenes”.”No, I want to coach, I’m too young”, he said on the possibility of retirement. “I have been in football a long time, but I will be 56 in a couple of weeks, so I am really too young”. It’s helping me stay fit and stay sharp because if you’re not sharp they’ll definitely be on you. Israeli student killed in Melbourne street while on phone to sisterBut his troubles began when he publicly criticised the United board for not backing him in the summer transfer market. He even bragged about his achievements from…