The 20-year-old has been loaned to the Sky Blues until the end of the season and was put into action straight away, starting his first game against Port Vale at the weekend.
Cargill had a busy League One debut in the 1-1 draw and is now looking to keep his place in Tony Mowbray's side to help fuel his Cherries career in the long run.
"It is difficult as a young central defender to break into a Premier League side so I've played in a lot of cup games which I've really enjoyed," he said.
"I really appreciated it when I was given the captain's armband by Eddie Howe, it filled me with a lot of confidence. He said some nice words and it was such an honour to have it at the age of 20.
"Tony Mowbray has basically told me to play how I know. Coventry are a similar side in a lot of ways to Bournemouth as both teams like to play out from the back.
"I was quite busy on my debut but I prefer it like that, someone told me I did 22 headers during the Port Vale game which is an introduction to the level, but I like it as it kept me busy and you're always going to be sharper.
"I've been out on loan three times now and each time I feel as though as I've gone back to Bournemouth a better player. I've been at Conference and League Two levels so I'm looking to step up again here to prove myself."