I have no idea if Fedko can play up here or not, but he was totally mismanaged and set up to fail by Shelton. He didn't have a plate appearance for 12 games, then you expect him to just jump in when Buxton left the game and be successful, that was a total screw up. He looked more comfortable at the plate when he first came up but you could see he was pressing after sitting for 12 days, A good manager, like TK kept his players sharp so when needed they would be in a better position to succeed.
And there was an opportunity to play him, Buxton sat for 4 games and they ran Kreidler out there and put Gray at short, leaving him to rot on the bench.