I'm also on my own for my personal tapas comic, but I'm also paid to be on a team as a storyboarder, sketch artist and lineartist, and there's about 5 of us on the project, so it's quite a big team for a comic. The solo one is a huge amount of work and I have self published in hardback form and the crowdfunding for that was one of the hardest things I've ever done because I'm really bad at self promo and get easily overwhelmed. Like I know my art speaks for itself a lot so I put a lot of my energy into actually making the art and forget the promo.
From the workflows I've seen teams are usually organised by specialities and skills, so here's a couple of options for typical team jobs:
1) Divide by production step:
- Writer
- Storyboarder
- Sketch artist
- Line artist
- Colourist
- Letterer
2) Divide by speciality
- Writer/Storyboarder
- Character sketch and line artist
- Decor sketch and line artist
- Colourist
- Letterer
Some of these jobs can be fused or adapted, like I'm not the best at backgrounds and in my personal comics my backgrounds actually have no lineart, but I'm fast to line so I work well as the liner on the team I'm on. Also the writer even if they're not an artist can be the first storyboarder and then give that over to the sketch artist to do a kind of "second storyboard" with an artist's eyes. Basically work out who you've got and play to everyone's strengths.
Sidenote: the bigger the team the more "organising the team" becomes a full on job in itself, so once you have over 4 people in there it's a good idea to cut some slack to the person who's organising the team and deadlines and stuff because that takes up way more time than you'd think. Over 5 and i think it's worth it to bring on a dedicated organiser if you can.