You're probably thinking of the Chappells, whose grandfather was Vic Richardson, Australia's opening bat when Douglas Jardine's exemplary tactics caused such a massive hissy fit down under
Ponting's not a very good captain imho, at least not of an average side, which is what Australia are now. Their problem (or one of them) is in trying to persist with the hyper aggressive batting approach of their glory days, which worked fine when they had Matthew Hayden coming out and moosing the ball everywhere from the off but not so well when there are lesser talents in the side. They need to learn to play average cricket effectively, which is what we've had to do over the last 10 years of being relatively competitive.
I'm in two minds about his injury. He is, of course, a dangerous player, even when his eyes have gone and his openers can't protect him from the new ball (if he continues in the team they must drop him down to four or five). On the other hand, he's been a cheap wicket all series for us so it's encouraging to see him walking to the wicket once Hughes has gone to another shit shot (or his partner's run him out). If Ponting's unfit (and I bet he does play), Clarke is not a convincing candidate as captain if you believe stories of his less than universal popularity in the dressing room and his poor results as one day skipper. I'd be more worried if they put Hussey in charge.
Talking of their openers, it's bizarre to see them open with a pair who should be going in at 5/6/7 at the highest. Hughes needs to be sent in lower if he's to play at all and Watson may be a guaranteed 50 but no more than that - he's a two hour batsman, gets bored, loses concentration and gets out. That's not what you want from an opener. What of Chris Rogers or Phil Jaques? Mark Cosgrove is a bit of a tubber but he's also a good opening bat for Tasmania. They seem to have options, they just won't use them, preferring youngsters like Hughes to seasoned pros. Approaches they've used when the team were on top of the world aren't so effective when they're mediocre at best and I really do think they need to rethink their selection policy.
Nice to be discussing their problems rather than ours