If AA isn't convinced that Machado (MVP type player) and an elite bullpen arm could push the team over the top, he needs help. And if you can't see that, you do too.
At no point will you find that I've even hinted that Machado wouldn't make this team better. The question I asked is "does he make this team good enough to beat the Astros, Yankees, or Red Sox in 2018?"
If that answer is no - or even "not by himself" - you just can't give up too much. I've consistently said that I think Allard as a centerpiece is a fair gamble, but Allard and Fried is too much when you have no more than two months worth of control. You don't expect it to happen, but for all we know Machado gets here and blows his knee out trying to leg out an infield hit during the first week (like Acuna almost did). He could come over and hit .213/.350/.474 like Harper's doing right now. Would that be worth a couple Top 100 prospects?
If you can get him for Allard OR Fried and a piece or two OUTSIDE our Top 20 - Ynoa/De La Cruz/Sanchez/Davidson/Wilson/Demeritte/Cruz/Lugbauer/possibly even Cumberland - of course it's worth rolling the dice. Anything more is an overpay - adding Machado makes this team better - it doesn't make it a favorite unless you can guarantee that Folty and Newcomb will continue to pitch like "Aces" through October, Acuna comes back and plays like he did his first weeks with no lingering knee problems, Albies isn't going to continue swinging at everything, Markakis is going to keep hitting .320, and NOBODY will get hurt.
Otherwise, this team - even with Machado - isn't going to beat the Astros, Yankees, or Red Sox in a 7 game series in 2018 without a lot of luck.