Something I've been kicking around in the noggin
I wonder if Sark wants an offense that scales up to being able to hit the highest notes of game-planning against the best competition. He wants to be able to run just about every run play possible. Different runs require different techniques not limited to steps, rules, and angles, and there's a reason some coaches prefer to major in one type of run (whether it's IZ, OZ, counter, duo, etc). Because of the time and practice constraints in college, and because you're dealing with college kids, there's a true give-take between the quality of blocking for a given scheme and the number of schemes you're implementing. Also it's possible that working on a variety of runs in college leads to more of a focus on just getting your assignment right and "shield blocking" rather than aggressively displacing your man
To start the season you're probably looking at being surface-level at a lot of schemes while hoping you have a couple of runs to hang your hat on; looking at a jack of all runs, master of some (or none). When defenses show unexpected wrinkles that you didn't rep that week, but you know that you've taught it in practice at some point, OL is a weakest link position, and it only takes one OL fuck up the play.
To start the season, you're hoping that experience or young-but-bright OL grok it as much as possible, but as the season goes on your level of understanding goes up across the board. It's a process. You'd love to know which players get it in fall camp if not spring camp so you can start the building up process as soon as possible, but sometimes that just doesn't in the cards, or injuries happen. Sometimes your game-planning for week one and a player keeps fucking up his assignment against the expected fronts/stunts.
Anyway, this is just a theory, but I'm hoping the OL individually and collectively gets better at the various runs as the season goes on. I think the passing game will eventually click at a high level that scales up, but I'm hoping the run get will get to the point to where it truly punishes defenses rather than just jabs them