I'd definitely plan on doing carrier most of the time and stroller sometimes. The Yoyo is a great stroller for this, I also recommend the compact Colugo or the Gbit. Just something that folds down tiny and is really lightweight.
I think you will want the stroller any day you have to carry any extra stuff into work or daycare. Like if you have to bring your breast pump home some days, or if you have to bring a week's worth of outfit changes and diapers on Monday. Or if you have a day where you need to be dressed up a bit more and it's not feasible to change. It's just nice to be able to throw stuff under the stroller while you are walking, and to have somewhere to put the baby down.
But otherwise, I'd definitely use the carrier and a backpack work bag. That's primarily what I did for the first year and you get use to the awkwardness of it and learn little tricks for figuring it out. I'd literally just keep a stack of professional-looking tees at work to change into. If you are breastfeeding, you will be grateful for this anyway because you might have occasional leaks, and also breastfeeding can impact your hormones and cause stuff like random sweating once you start weaning.
Also, this isn't really a practical tip, but I liked that time I spent with my DD in the carrier during commutes. It was hard to be apart from her at that age and it made me feel better to get to be very close to her during that time. It turned the commute into quality bonding time, whereas days she was in the stroller were less so.