First came Faf du Plessis. Then Vernon Philander. Then Steve Smith, Usman Khawaja and Darren Lehmann. And Stephen Cook.Only then, more than 40 minutes after the start of the barrage of press conferences that followed Australia winning the third Test by seven wickets, did Russell Domingo sit down behind the microphones.The press conference is, as one grizzled Aussie journalist said earlier in the Adelaide Test, "the opiate of the hack". They can be tediousness itself for both the questioned and the questioners, an apparently necessary evil of modern sport.Being the only person on the other side of the microphone curtain can be deflating, never mind waiting for six others to do their thing first. So perhaps that's why Domingo seemed flat.Or maybe, still thinking about what went wrong for South Africa in the third Test, Domingo was struggling to rekindle the happiness of winning the series in Hobart two weeks previously."You can't think you're the best side in the world when you're winning and you can't think you're the worst in the world when you lose," Domingo said."It's the same with coaching. You've got to keep a balance and you've got to keep perspective and you've got to keep the focus on things you can control."Among the things Domingo can't control is what his underground army of detractors - motto: what does he who has never played high-level cricket know about coaching? - say, even though he has reeled off one-day and Test series triumphs against Australia."It's just another day," Domingo said. "It's no drama in my life. There's always going to be people [who doubt you]. If I'm the right guy for the job, I am. If I'm not, I'm not. That's the bottom line. The team is more important than any individual and that's my mantra."Domingo gave a large chunk of the credit to Philander, who missed most of the 2015-2016 campaign with an ankle injury. He took a dozen wickets at 23.58 in Australia and provided the stability South Africa needed to keep the pressure on the batsmen.Now AB de Villiers seems set to return as captain, despite Du Plessis' success in the role."AB de Villiers is one of the best [batsmen] in the world," Domingo said. "I'm assuming he'll come straight back into the side and somebody will need to make way for him - you can only play 11."Whoever they are, they'll be a damned good team...