I'll just add one more comment in my backing of Cam Johnston. If this question had been asked two years ago, without question and without fail Carlos Hyde and Braxton Miller would have been the two players that everyone would be debating about who is more indispensable. Absolutely no question about it.
Enter JT Barrett and Ezekiel Elliott in 2014. Barrett came in and broke all of Miller's single season and B1G records, and The Teflon Wizard trounced Wisconsin, Alabama and Oregon in one of the most prolific feats of rushing in NCAA history. The point is that Miller and Hyde became afterthoughts just one year after being thought that they were absolutely indispensable. It's amazing really.
OSU has recruited great skill position players and we're stacked. Everywhere. But you can't replace Cam Johnston and his ability to put the ball inside the 10 with pinpoint accuracy. Elliott is great, Bosa is great, Lee etc..
But Cam is the best I've ever seen at his position and his skill set is truly indispensable