Cook spoke, after his team's eight-wicket win at Chester-le-Street had established an unassailable 3-0 lead, of the cachet of a clean sweep against the old enemy - but also the possibility of once again employing the rotation policy.
England's selectors first caused a stir when James Anderson was prescribed a break for the final Test against West Indies at Edgbaston, a fixture his pace colleague Stuart Broad also eventually sat out.
Then came a rest for the last one-day international against the Windies at Headingley, a match which was washed out in any case, for home favourite Tim Bresnan, Broad and Graeme Swann. Most recently, off-spinner Swann did not travel up to Durham as England took a safety-first approach with his sore bowling elbow.
That was the first instance of a key player being rested before a series was won. As yet, no batsman has been given a break either.
Cook, meanwhile, can reflect on an impressive ninth successive ODI victory - and England's seventh consecutive home series win in 50-over cricket - but he knows the job is not yet complete.
"Four-nil looks a lot better than 3-1," he said, looking forward to Tuesday's day-night fixture in Manchester.
"They will be desperate not to let that happen, but we have got to be just as hungry as we have been in these games. It would be great to make it 10 wins in a row."
As for the possibility of a break from the packed schedule for one or more of England's regulars, he said: "There is always a chance that we will rotate.
"We want to win 4-0 but we will look at selection, like we always do."