Victories at home against the likes of Scarlets and Ulster have impressed the Rodney Parade faithful.
But no wins on their travels remains a concern for Jones who watched his side slip to a 40-17 defeat at the Liberty Stadium on Friday night.
And Jones has called for a massive step-up from his troops before the reigning RaboDirect PRO12 champions Leinster come to town on Friday.
"We are not putting our heads in the sand and pretending this was a one-night stand," said the director of rugby.
"The Ospreys game was a watershed for us and a measurement for a lot of players.
"Newport Gwent Dragons are a showing signs of ambition, I want this club to move forward and I want players to take the opportunities to show me and everybody that they are the ones to do that.
"That was not a performance for a regional side in Wales. Simple as that.
"We weren't good enough against the Ospreys. Lots of players were giving everything they had and sadly other boys were missing tackles like a Division One side.
"And you can't defend for 80 per cent of the game because you are going to get tired, so when you have the ball you must hold onto it and play. We just couldn't do that."