The best way to think about this is that any MLB team likely needs 7-8 starters over the course of a season, and if you have eyes in seriously competing you probably wanna bump that closer to 10. Even if you think Wiggins is MLB ready *right now*, for pure roster management reasons they just can't operate in a way that gives him a direct path to MLB.
I'd expect the pitching depth to look something like this heading into ST
- 4 veteran locks: Likely Boyd, Shota, Taillon, and a TBD new acquisition
- 1 optionable near lock: Cade Horton
- 1 Justin Steele recovering from injury
- 1 veteran swingman. This is probably Rea but maybe the team makes a swap
- 2-3 optionable depth types. This is likely some combo of Assad/Brown/Wicks. I could see one getting moved or shifted to short relief but at least two will enter camp stretched out
- Wiggins and to a lesser extent Sanders as off the 40 man prospect depth
The season is long, and pitching depth erodes quickly. Like this year the Cubs at damn near any given time had 2-3 starters on the IL and Brown/Wicks didn't perform like we'd have liked. Wiggins is fun and we all want to see him ASAP, but the inherent cost to giving him an easy avenue to make the team early next year is leaving yourself dangerously vulnerable to attrition.