Callan Ward and Phil Davis will retain their positions as co-captains, while Dylan Shiel, Devon Smith, Josh Kelly and former vice-captain, Heath Shaw, round out the seven-man team along with Coniglio.
Defender Matt Buntine has dropped out of the group.
“Stephen has got great character, he’s respected by his peers, and he’s a really popular person amongst our playing group,” coach Leon Cameron said on Tuesday.
“And it’s not just Stephen, it’s everyone up here.
“Devon (Smith) captained the team on the weekend (against the Swans), and watching him deal with some situations out there, compared to three or for years ago, was like chalk and cheese.
“Dylan (Shiel) will captain the side (against North Melbourne) this week in Canberra and so on, and Stephen has been through that as well.
“They’re all young lads who can play the game, they’re bonafide AFL players who can contribute on the field, but they know they want to get outside themselves and look after their teammates as well, and point them in the right direction.”