He said: "When we brought on Freddie Sears in the second-half, it gave us all a lift again just like last week when he scored the winner on his debut.
"He gives us something different, and he easily have scored again with that late effort against the post."
West Ham United goalkeeper Robert Green told Setanta Sports 1: "After eight minutes it seemed like a good result.
"We carved out the better chances and played the better football - now we are walking off deeply disappointed with a point.
"It (Sears' shot) was just half the width of the post (from going in). Just unlucky for the lad.
"Freddie is sharp and is going to create havoc when legs are tiring and that is what he has done today."