Erik ten Hag showed his tactical versatility when leading Ajax to three straight Eredivisie titles.
The Dutchman went from deploying a false nine in his first season with Dusan Tadic to installing a centre-forward in Sebastien Haller in his final year. The latter is the set-up he is expected to implement at United initially with 37-year-old Cristiano Ronaldo leading the line.
But the superstar is getting no younger and several times last season he was seen missing from the squad, usually through a knock. Ten Hag is keen to reinforce his attacking options this summer.