"Jermain is a special player and we want as many decent players as we can if we are going to get promotion so the hope is that he stays here and scores more goals to help us get up," he says.
He returned of course after a five match ban to inspire West Ham to a fightback against Sunderland with two goals on Saturday to remind everyone how much he had been missed.
"It is important that we keep him but it was important that we kept the players we lost over the summer," adds David.
"Obviously football is a business and businesses have to run to profit - or so I've heard!"
As for the fans on Saturday, David says:
"They have been very good; at half time there were a few who chose not to be so good but I think the frustrations that we on the playing staff have had not winning games boils over.
"It was very upbeat before the game and then to put the performance in that we did in the first half frustrations are to be expected.
"In the second half everyone was happy again and hopefully that could be the corner turned."