The 34-year-old joined Cape Town City City on a two-year deal in July after leaving Mamelodi Sundowns – a month after Bafana Bafana legend McCarthy took over the reins following Eric Tinkler’s defection to Premiership rivals SuperSport United.
Modise is among McCarthy's most experienced hands, having won the league twice, the Nedbank Cup, the Telkom Knockout, the CAF Champions League and the Super Cup with Downs, in addition to earning 66 international caps.
And while McCarthy lamented Modise's absence in the MTN8 quarter-final win over Polokwane City on the weekend the playmaker insists team success is his coach's prime concern.
"There is no particular expectations from him [McCarthy] to me, but he has got expectations from the team," Modise tells KickOff.com.
"Us as senior players, we have to back that up and make sure everybody is on the path and we are all striving to achieve one goal, which is to do well and win stuff for the team.
"Yeah, of course with the experience you have responsibilities. I have got the responsibility as a senior player to make sure we do well, we do things properly, we play proper football."
Modise says McCarthy, who is only five years his senior, has stressed the need for the side to enjoy their football.
"One thing I like about Benni is that he emphasises for us to enjoy the game. Of course we are doing the proper things as well. I think most guys are happy with that. And if every player is happy with that and is willing to play for the coach, I mean that's a bonus for the coach."
Meanwhile, the ex-Orlando Pirates man says the prospect of a new challenge rather than limited game-time in recent seasons led to his exit from Chloorkop after six-and-a-half years with the Brazilians.
"It was not mainly because of more game-time, it was for a different challenge. I've achieved so much at Mamelodi Sundowns and I just wanted a new environment to get that spark back. I've got a passion for the game. Just a change of scenery will help me as a person and as a footballer as well, to get new challenges.
"This is a proper challenge where I am. I'm surrounded by a bunch of youngsters who are working very hard and are very good footballers. It helps you as well to work harder and earn my place in the team."
Modise is hoping to make his debut in the club's 2017/18 league opener with champions Bidvest Wits on Friday after a groin injury forced him out of the clash with Rise and Shine.