Woodster
International Captain
Difference being with the names you've mentioned there, two are batsmen that can conceivably continue for a further five years, and one is a match winning spinner,a type of slow bowler SA really lack in the squad. Of course a spin bowler can also enjoy an elongated career.Tahir debuted at 31 and Rudolph is back in contention and he is well seasoned. South Africa use to have a culture where once you hit 30, the knives come out but they have been embracing older cricketers in recent years and following the Aussie model. Neil Mac made his comeback when he was around 32/33.
Not sure a quick bowler, who will be aged 31, with the injury history of a Friedel de Wet will be someone SA will look to rush back into their squad, even if he enjoys a successful season at Hants, unless injuries crop up to any of Steyn, Morkel, Tsotsobe, etc.