I know it's important for football development to try different positions, but Gallagher out wide is frankly ridiculous. He had a bad game anyway and his confidence is shot, but at least play him in his favoured role. Especially when we're pumping long balls towards the diminutive Seager.
Perhaps playing 4-2-3-1 no matter what is a bad idea for the u21s. I think at this form of development it's important that players can adapt to different formations and a 4-4-2 would have suited the personnel better.