Koyack is going to be fine. The clue is that Kelly IS playing him. He would not play an incompetent person. Koyack was/has always been praised for his good hands. That will be demonstrated once we get some actual bulk gametime plays to gossip about. [Goodman, for instance, dropped one of his first punts a year ago, yet was the best actual fielder on the team --- sh!t happens].
NYMIKE has the general truth. In Kelly's scheme, Koyack is much more Eifert than Niklas/Welch. But no one takes an Eifert off the field much. So Ben gets rusty at what he's best at. Also, it constantly amazes me how IE posters can't take a middle road on anything, as these situations are almost never black and white. Kelly has said several times that both Tyler and Ben are not where he wants them to be on blocking quality. He has also said that both of them are making great strides there.
Why would Kelly run a play to Eifert's side?
A). Eifert is not completely incompetent even if he's not up to where Coach would want him to be;
B). That's where the chess game said the play had the greatest chance of surprise and systemic success;
C). Coach must assume competence in the players running the plays correctly as called, or he'd be in brainlock.
Much of this discussion sounds a bit like HS Debate Club, but thanks to NYMIKE for remembering coaching staff comments, player past performance, and the fact that such "throw him under the bus" stuff is based on ridiculously small game condition data points. Koyack is going to be a solid Notre Dame TE.