Former RB Leipzig and RB Salzburg boss Marsch was unveiled as United's new head coach on Monday evening, less than 36 hours after promotion-winning hero Marcelo Bielsa had been sacked.
Saturday's 4-0 defeat at home to Tottenham proved Bielsa's last game in charge, the Whites falling to a fourth-straight defeat and having now lost five of their last six.
Leeds sit fifth-bottom, two points clear of the drop zone, and Marsch's tenure will begin with Saturday's clash against Brendan Rodgers' Foxes side at the King Power Stadium in a 12.30pm kick-off.
Marsch provided his first batch of team news at his opening Whites press conference on Thursday afternoon and this is how we think the American boss will line Leeds up.
7. CM - Stuart Dallas
Dallas was another hailed by Marsch at his pre-match press conference and the player of the year looks a certain starter, it's just a case of in which position. Centre midfield, next to Forshaw, looks the call although Mateusz Klich is another option.
8. RW - Raphinha
Bielsa nearly always fielded a front four and it might well be the same under Marsch but with the odd tweak. Either way, star man Raphinha looks a banker to start on the right wing.
9. LW - Jack Harrison
This is where it gets really interesting as Marsch could opt to use the lightning pace of Dan James down the left. But James has been deployed upfront of late and might well be in that position again, paving the way for Harrison on the left flank.
10. ST - Rodrigo
United's record signing has regularly shifted between being used as a no 9 or a no 10 since signing but under Marsch it might be a case of two upfront which could well benefit the Spanish international.
11. ST - Dan James
Marsch says Whites star Patrick Bamford is now close to making a return but a bench place at best looks the percentage call after such a long time out. Joe Gelhardt is another leading option, or Tyler Roberts, but perhaps it will be James in a front two.