Long one, sorry. I've been chewing on this since Tuesday and I want to put the actual logic on the table instead of everybody yelling "ceiling" and "earned it" at each other.
When you take over a program in this condition you are not choosing between winning and losing this year. You're choosing what you own in eighteen months. Every rep you spend is either buying information or buying comfort.
Playing the older guy buys comfort. You know roughly what the offense looks like, you know the huddle is calm, you probably keep a couple of games from getting embarrassing, and the fanbase doesn't riot in September. All real. All worth something. The problem is that at the end of it you know exactly as much as you know today, and the thing you know is not good enough to win the division in any year.
Playing the freshman buys information, and information in a rebuild is the only asset that appreciates. Either the answer is on the roster, in which case you found it a year early and you build the next two recruiting classes around a known quantity, or the answer isn't on the roster, in which case you know that in October and you go get one instead of discovering it in 2028.
The other thing nobody's saying: the cost of being wrong is asymmetric here. If the freshman isn't ready, the downside is a season that was already going to be hard being slightly harder, plus a young player having a rough public autumn, which is bad but survivable. If you sit him and he was the guy, you burned a year of the only genuinely scarce thing this program has.
Coaches who inherit wreckage and play for floor almost always get fired by the guy who eventually plays for ceiling. That pattern is old and it is boring and it is still true.
I'm not telling you it works. I'm telling you it's a real framework and not a content creator picking a toy.