Mayor John Whitmire, facing criticism over a delay in payouts for more than 300 city employees who accepted a buyout to retire, fired back during a recent Houston City Council meeting. He put the blame on the Houston Municipal Employees Pension Plan, which was overwhelmed with processing 1,052 early retirements. Sherry Mose, chair of the pension plan, told Whitmire and the council during its Sept. 10 meeting that more than 700 of the retirees have been paid. The remainder will be paid by the end of September. The city offered early retirement to workers earlier this year to help address a budget shortfall.