The two men offered their resignations, which Mr Karzai accepted.
The government’s majority has steadily eroded since 2007, mainly through resignations.
But for weeks, rumors of turmoil and mass resignations at Caijing have circulated online.
Zhang denied there had been mass resignations, saying recent departures in the business department reflected "normal change".
The Miami-Dade County School Board voted5 to4 on Wednesday to fire six teachers and accept resignations from26 others.
The management of the EHRC was under pressure this weekend after a number of resignations, but senior figures will gather in London today to launch the report.
Party leaders point out, too, that their own year-long protests and demands in parliament for inquiries into official scams have brought resignations and arrests.
Instead, it prompted the resignations of the country's hugely respected interior minister and spy chief and exposed serious disagreements about efforts at reconciliation with the insurgents.
Furthermore, knowing that these resignations were of a political nature, the management hoped they would depart as quickly as possible in order to avoid further any case, salaries for the month had already been paid.
"The resignations have all been on the marketing side, but the editorial staff have stayed in place and we're still putting out the magazine, " said a Caijing editor, requesting anonymity.
