Marshall returned from his loan at Macclesfield to find out he was no longer part of the managers plans yesterday, with teenager Banks also shown the door.
Evans told Millersplayer: "Marcus will move on, there might be some supporters asking why. He hasn't had a lot of game time; he has been on loan at Macclesfield where we have had him assessed, so the supporters have to trust us on who we are going to bring in. He is a young man who has conducted himself great, we had the chance to have a real close look at him and we've made our decision and he moves on with our best wishes."
The gaffer added: "We have to give Rotherham United players who are contracted to the club a chance so Sam Wood and Kieron Cadogan have gone back, whilst Scott Griffiths is on stand-by but training with Darren Ferguson at Peterborough tomorrow. All three have gone back and we thank the lads for their service and we wish them every success."