Stoke came up with a first clean sheet in three months to stop a run of three successive defeats against West Brom.
Cameron said: "Losing to Newcastle with that late goal was a big dagger to us.
"Most teams would put their heads down and not come back from that but we showed we still have a positive attitude.
"The players are behind the manager 100 per cent.
"We were flying around Christmas. We beat Liverpool at home and everyone was on cloud nine. You get these bad bounces and there's no sense in being negative."