Yes, that's OK.
Last year (or was it the year before?) I made Bo Peep use up a substitution to change her team before the season started. But in hindsight that seemed a bit harsh, so we can change our teams without using up a substitution, as long as its before the first race starts.
Sorry WP, it does.
Team Tup
Rob Jebb 9pts
Gill Myers 1pt
Wendy Dodds 1pt
Mike Robinson 2pts
Poacher turned game-keeper