Depth is very nice to have. You can't just look at the roster and say where is everyone going to play. These things always have a way of figuring themselves out. Whether it's injuries, under performance, someone coming out of nowhere to steal playing time. There's always crazy things that happen you actually end up wanting to add after thinking you had enough.
You're signing Tucker or Bo to upgrade the overall talent of the roster and making the pieces fit later. There's creative ways they can keep everyone involved. You might see more built in rest days, even more platoons, Ernie can play a lot more SS. They don't have to be married to guys like Gimenez playing everyday. He will get the bulk of the starts at SS. But he doesn't need to start they could start Ernie there and sub in Giminez in later for defense while moving Ernie to Third for defense.
It's really fun for the first time that I can remember were talking about having to much talent for only so many spots.