Someone is gonna go nutty. Even in a year where he was clearly below his potential, he was a 6.6 WAR, .900+OPS player. He's averaged 7+ WAR for the last 4 years. He is likely to be near 7 WAR in 2020. He will likely be a 7 WAR player for a few years after that. Here is the problem I have with Mookie. He's a short ball player. His defensive game is tied to his quick twitch speed, something that will wane as he aged. As a hitter, he is valuable, but he isn't a $300+ mil player on his bat alone. It's his baserunning and defense that add that extra value, both of which will fade during his next contract. Does it fade early? Does he retain it later? Nobody knows, but there is a solid chance that he becomes exceptionally overpaid on a yearly basis before he hits the halfway point of the contract. Now, for a team still likely to be a WS contender, you do the deal. Kinda like what the Yanks are doing with Cole. We should be WS contenders the first half of the contract and digging out from the mess the second half. The problem for the sox is that the situation is flipped. They're digging out from the mess early in the contract and by the time they're perennial contenders again, he might have already peaked. It never made sense to me for the sox to give him the deal he will want or to outpace the market.