For the life of me, I don't get why we wouldn't put Holgate next to Keane and leave the pairing alone for the rest of the season, minimum. See if it gels, especially with Baines back.
Because that pairing wouldn't work. I can see your logic but one is a lad without much experience who plays off the cuff and the other is a lad who looks scared of a football at the minute.
I'd be pairing Holgate with Jags until the end of the season, telling Keane to go away and sort his head out and make sure he's ready to come in pre season ready for a fresh challenge and to start his Everton career afresh. Knowing he won't have to see Ashley Williams ever again.