Keep thinking about the glutton of middle infielders the cubs have and ultimately how they solve this. As we have seen with Bote's ascendence, the cubs have even more depth there than we thought going in and going in we thought they were overwhelmingly deep at 2B. I'm not entirely sure what I would do. I'm pretty sure I wouldn't move Russell personally. He's too good defensively at SS and I think he's really close to an offensive break out. He fixed the k rate issues that plagued him the past 3 years but in so doing lost some of his power. If and when he finds that he could have a monster year.
That sorta means you're making the choice between Baez and Happ. I find Baez polarizing because on the one hand the stats tell me he's probably not this good but on the other there's so many little things he does that don't really show up in stats. Happ on the other hand looks like he could be a monster bat if he ever fixes his k rate issue. Bote emerging does present some interesting possibilities though because he largely can play the role Happ currently occupies.