We were excited when our prospects came up and the future looked bright - in 2019 that future arrived and it was great, but we expected a longer run. The foundation was going to be Berrios - I know all the arguments that he is not a true Ace, but he has been our best pitcher and is a solid middle of the rotation arm that we did not build around. 53 - 40 with a 4.11 era for his six years 8.1 WAR.
The expected stars on offense were Sano and Buxton
Miguel Sano - who is in his 7th year (7.8 WAR). He has played in 100+ games three times. 236/329/489 is his seven year slash line, but look at the trends - BA - 269, 236, 264, 199, 247, 204, 158. His last three OPS - 923, 757, 656. BR offensive War (defense is negative so I won't bother. He is here for his bat.) 2.4, 1.7, 3.1 0.1, 3.7, 0.5, 0.1. Miguel seems like he plateaued and is lost.
Byron Buxton - 7 years and 14.5 WAR - if only he could stay healthy. No doubt his hitting is on the rise - here is his yearly OPS 576, 714, 728, 383, 827, 844, 1.180. Buxton has found his bat, but he has played in 456 games out of a possible 922. He has missed half his possible games. This does not diminish his quality when he is on the field, but makes it hard to cover CF when your other option is moving Kepler or using Cave.
The next three foundation pieces did not have the same star power potential, but they were expected to be solid pieces to round out the team
Jorge Polanco - no longer a SS his value has diminished in the field. He has contributed 8.8 WAR. His career slash is 274/333/430/762 and he has been fairly steady, but in 2019 his OPS was 841 after a career streak of 700s+, but then 2020 and 2021 that OPS mark dropped below 700 and with his fielding not being an asset any longer he career seems to have flattened out and his value may have peaked.
Max Kepler shocks me with a 13.2 WAR. A slash line of 236/318/443/761 does not seem to warrant such a good WAR grade. When I look at his OWar 9.7 and his DWar 2.1 they add up to 11.8 so someone will have to explain BR math to me. He peaked in 2019 like so many did and had his only year with more than 20 HRs, It was the only year he hit more than 250. And it was the only year he slugged more than 500. Surrounding 2019 his BA was 224 in 2018, 228, and 212 the last two years.
Eddie Rosario is the last of the big six and they have already given up on him and let him shuffle off to Cleveland, so he was the first of the six to disappoint enough to be moved on. His seven year slash line is 274/308/469/777. His peak was 2017/2018.
Buxton 14.5According to BR WAR Rosario had a total of 12 which means it we rank the six by WAR it would be
Berrios 8.1 (he is the only one with six seasons instead of seven)