If Tulo stays healthy and continues to produce at an elite level the contract is a no brainer. The thing is there aren't that many players in the history of the game who can year in and year out produce at that level much less while playing the middle infield. I'll put the over/under on the number of 5+ WAR seasons Tulo produces during the length of the contract at 5. What side of the line does your money fall on? I just can't help but think of Sizemore after 08. He was 26. His last four seasons had been 7.1, 5.7, 7.3 and 5.4 WAR. He had three years and an option remaining on his contract. He provided good offense and defense at a premium up the middle position. His last two years have been a mess of injuries and even with two reasonably priced years left on his deal Cleveland is hoping he can reestablish value and move him before all value is lost. Now look at Tulo this year. He is 26. His last four seasons have been 6.4, 5.7, 0.9, 5.4 WAR. He had three years and an option left on his contract. He provides good offense and defense at a premium up the middle position. I'm not saying just because Sizemore imploded that Tulo will do the same, just trying to illustrate why handing out and extension to someone with four years of control remaining is a risky proposition.