5. Kevin Kiermaier
Keep in mind, this is the nightmare scenario where the Cubs are unable to re-sign Cody Bellinger and they bring in a veteran outfielder as depth for the rookies. And by depth, I mean Ross will play them every day despite how bad they look until the front office designates them for assignment.
There is a wealth of center fielders who fall into this bucket and are hitting free agency in addition to Kevin Kiermaier; including Harrison Bader, Michael Taylor, Tony Kemp, Kevin Pillar, Jake Marisnick etc. I could see the Cubs bringing in any one of these guys as a band-aid free agency signing.
Do I want this to happen? No. But given the situation and the colossal demand for Cody Bellinger, I'd prepare yourself to see this kind of signing by the Cubs.