I think the optimism is well founded. When's the last time we've had a number 1 prospect?
The issues to me, is timing and where his best position is. That could take months and months to determine.
I feel pretty certain Moncada will become an offensive threat. He may be at that point in his development right now or very soon. I don't think we should look at a few handful of September ABs to think he's a long way away from making an impact with his bat. He's got a great swing and all the "tools" a player could need. Is there a chance we get let down? Of course, but the chances are much better he becomes something special.
It's hard to play the waiting game, when you're trying to win a championship every year. I have mentioned trying to find a one year fix at 3B, but I'm not sure that's practical or possible.
The one good thing we have going for us is this: our two most high need areas beyond the staff are 3B and Catcher, Maybe 1B/DH is next, but our very best prospects and recent prospect grads play (or can play or may someday play) those 2-3 positions.
3B: Moncada, Devers (maybe Swihart and further away Dalbec)
C: Vazaquez & Swihart
1B: maybe Devers or Swihart plus Sam Travis (plus further away Ockimey/Longhi)