Singing Koumas' praises, Jones said: "The lad has everything you need at the highest level.
"He fell off the ladder for whatever reason, but he's starting to rebuild and not many people in the Premiership could score a goal like that.
"I'm pleased for him, his girlfriend, and his son who was born this week."
Koumas came on as a second half substitute in the game last night and after scoring another great goal will be hoping for a place in the starting XI at Millwall on Saturday.