The Cavalier Tactician 1st level ability, and the 9th level Greater Tactician ability only work with the selected bonus Teamwork feats of the ability. Not until the 17th level Master Tactician ability do they work with any Teamwork feat.
It would be nice if the character output sheet listed the teamwork feats selected and usable by those characters, so that characters that have more than one teamwork feat (or two, in the case of Greater Tactician) can tell with which feats they may use their class tactician abilities.
CHOOSE for Teamwork feat(s) on Tactician Ability
Feats are listed in description, and currently on ability name as well.