You have that backward on Taylor. Taylor came up as an infielder and played there exclusively until 2017. He's a pretty good outfielder too though, as we unfortunately witnessed against the Brewers in the 2018 NLCS. If the Brewers pursued a trade for him I'd assume it would be as their primary shortstop, not a utility player. I was looking at how the Dodgers used him and his career ratings at positions. Plus rating for OF play and negative ratings for every infield position. When you have a player and team as versatile as the Dodgers I think need outweighs skills when looking at innings played at any given position. Seager/Macho are studs so it's understandable there haven't been a significant number of innings to play at SS over the last few years. As far as the IF defense. Not sure what metrics you looked at, but DRS has Taylor sorta hovering around as a neutral SS from year to year, +7 DRS in his career. FRAA has his as ~neutral at SS. True UZR has him below average over the course of his career, but not significantly. I know this is probably splitting hairs, but he's probably closer to a neutral defender than a negative defender at SS. I do think it's fair to question whether the Brewers can live with a neutral or worse defender at SS given they'll have at least one terrible defender on the IF already.