Its easy to say things like this, and get lots of upvotes or likes for it, but have you got any specific suggestions. Ok, you're the boss, you're going to hire some people, but those people will want direction. You're holding the purse strings. Waving your hands around and saying words like Fidelity and gameplay isn't necessarily going to get you a good game. I've seen "just do it" managers in action, it doesn't work well.
So, your uber game designers that you have hired will need direction. What are you going to tell them?
You don't want spreadsheet mechanics, you don't want gating or grind, exactly how do you want the gameplay to work? Best to be specific, otherwise the game designers might make you a game that results in lots of people posting on forums about how bad your game is and what they would do better if there wasn't someone useless in charge!