Senior campaigner Mohammad Hafeez helped his nerves to guide Pakistan to victory in their first one-day against South Africa on Saturday.
Former Test pacer Tanvir Ahmed believes some of the former Pakistani cricketers would be willing to work even in toilets if they get a chance to work with the Pakistan Cricket Board (PCB).
Pakistan bowling coach Azhar Mahmood said the remaining Pakistan batsmen would need to follow the example of De Kock and Hashim Amla.
Set to make a daunting 381 to win, Pakistan were 153 for three at the close, needing another 228 runs.
De Kock equalled his Test-best score of 129 before South Africa were bowled out for 303.
Duanne Olivier took two wickets in four balls to end a frustrating hour for South Africa on the second day of the third and final Test against Pakistan at the Wanderers Stadium on Saturday.
Reports had suggested that Arthur had censured Sarfraz Ahmed, Azhar Ali, and Asad Shafiq for "soft" dismissals.
Imam-ul-Haq scored a half-century as Pakistan made a good start to their second innings on the second day of the first Test against South Africa at SuperSport Park on Thursday.
Imam-ul-Haq and Haris Sohail hit half-centuries as the touring Pakistanis beat a South African Invitation XI by six wickets.
Williamson described a tension-packed narrow four-run win over Pakistan in the first match on Monday a "good advertisement for Test cricket."