Favoured candidates include co-captain for the past two years Jack Grimes and back-to-back best and fairest winner Nathan Jones.
However unlucky recruit Mitch Clark and low-key defender Colin Garland have also impressed in recent seasons with their leadership around the club.
All four were members of the club's leadership group last season.
Former co-captain Jack Trengove, who became the youngest captain in the game's history when appointed at the start of 2012, has decided to relinquish the title in order to concentrate on his own development.
Roos says he is inclined to appoint co-captains after having done that when coach of the Sydney Swans, with Leading Teams also having input into the selection process.
Stuart Maxfield was the first captain under Roos at the Swans and is regarded as a key figure in developing the famed 'Bloods' culture.
After Maxfield retired the club had Leo Barry, Brett Kirk and Barry Hall as joint captains with Craig Bolton and Adam Goodes also joint captains under Roos.
Under Roos and Leading Teams, captains chosen are the players who best represent and foster positive team behaviours.
