Where do the Twins need to upgrade, and what is an upgrade? Here is a very telling slashline: .238/.292/.370 that is the Twins' LHB line against RHP. And it is 23% worse than league average (and that is their lowest OPS split.) and here is another one: .198/.252/.304 Team slash line in losses. (and the Twins were 12th in the AL in OPS, 15th in OBP and 14th in BA out of 15 teams) So hitting and lefty hitting more specifically is due for an upgrade (and part of the reason the Twins lost.) If they solidify their pen, but still score one run in 4 hits, as they have done recently, they will fail (again) So: Sano over Plouffe at 3B will be an upgrade (Sano: 146 OPS+ and still has not entered his prime, Plouffe 99 OPS+ and will be 30 next season.) The Twins need LHBs and specifically OBP hitters. A full season of Rosario might help, but his is a contact hitter who will not take many walks. .289 OBP (.281 against RHPs) and .022 IsoD will not cut it. Mauer had the worst OPS in his career (.718) and Hicks hit .236/.303/.360, Escobar .257/.317/.428, and Vargas .185/.224/.294 as LHBs. Where can they put them? Catcher, DH and OF. Getting Arcia and his career .250/.322/.485 at on OF spot and hoping that Vargas will return to 2014 form at DH is a start. But they should go after a decent LHB catcher for an everyday catcher (Bargain FA Bryan Pena hitting .295/.347/.353 against RHBs might be a win-win here, and start Suzuki who hits better against LHPs against lefties) and another LH contact bat (That might be Kepler or might not.) Would I be happier if they traded (let's say Dozier for Dee Gordon) for some above average LH sticks? Of course. But that's not how they roll...