Young players get dug out for these types of mistakes, but to be honest I've lost count of Everton centre backs who struggle to deal with long diagonal high balls and tall target men. Jags and Distin at their peak got regularly undone by straight balls down the middle of the pitch. I would have preferred Koeman to move him to RB and hook Coleman but no reason for Holgate to lose confidence.
...we have really suffered from defending route one passes because our full backs go missing upfield and leave the CBs totally exposed.