Succession planning is one of the hardest skills in football. Those that can do it well, stand out from the rest. Whether it's a manager, a star striker or your best physio, it's more imperative than ever to have plans in place if they leave.
Manchester United have a chequered past in that regard. In the transfer market, United have done well this summer to upgrade key areas.
After allowing David de Gea to leave on a free transfer, they swooped for top target Andre Onana. Mason Mount is viewed as a younger Christian Eriksen and will offer a better pressing option as an advanced number eight.
Rasmus Hojlund could have done with a more senior striker to help his transition but United's needs were accelerated by Cristiano Ronaldo's sudden exit. Want to join our MUFC Pro club for a totally ad-free version of the MEN's dedicated Manchester United FC app packed with premium features? Click here . READ MORE: 'It was a shock to me' - How Aaron Wan-Bissaka adapted to Manchester United and rescued Old Trafford career Across the Premier League, some of the biggest clubs have fallen foul of a lack of succession plan.