You honestly don't even really need a team to get an edge over the house. My mom is addicted to gambling and black jack is the only thing that keeps her from being broke.

If you sit at a table with people who actually know what they're doing, and are all focused on actually playing together vs the house instead of playing to win every hand they can...you can all make a good deal of money.

I've had to on multiple occasions go and pick my 60 year old mother from the casino because shes spent over 20 hours at the table and can't drive anymore. Once you have a table full of people who know how to play together nobody leaves. Because as soon as you do, some drunk dude is going to come in and ruin the count by doing a dumb split or something that only benefits themselves.