When it comes to the 2020 multibillion new TV contract, the opt out was huge. The Cubs will need to field a very competitive team in 2018 and 2019 to maximize its value. Allowing him the option to leave after 2017 would make no sense in the grand scheme of things. Adding another year which would be 2020 when they have a few hundred million in additional revenues would not be as big of an issue. It is huge for Tanaka..but I don't think if the numbers were switched and we offered 155m with no opt out, and the yanks offered 120 with it, that he goes with the yankees because of it. It is absolutely great for him, because he is protected if he is average or gets hurt but if he's great, he can go after Kershaw money in 4 years. I don't see how the Cubs could have ever included that since the allure of Tanaka was to have him well after the young guys are up. I think most of us expected the Cubs to try before 2018. Of the top 10 prospects, I'm not sure there's a guy with an eta that late, maybe Candelario?