England head coach Andy Robinson has reacted to England's 11-9 defeat against a Gavin Henson-inspired Wales by making five personnel changes and two positional switches for the French clash.
England's chronic lack of a midfield kicking presence meant they could not establish a territorial foothold against at the Millennium Stadium, hence Barkley's promotion from bench to starting line-up.
'I think on the whole, we lacked rhythm and pattern. We seemed to be at sixes and sevens, and really lacked that cohesion a team needs to possess,'
said Barkley, whose second-half introduction in Cardiff was too little, too late.
'From my point of view, I don't think we played enough decent field position. I think the Welsh looked susceptible once they were on the back foot, and I was trying to push them deep into their 22.
'That was one of the worst performances I have seen from an England side in a long time, just in terms of we lacked any rhythm or penetration. Any improvement from that, I think, will be easy to come by. What we saw against Wales wasn't what we are about.
'Rhythm will be very important for us on Sunday. We lacked it to a massive extent last weekend, but I am pretty confident we will get it back on Sunday.
'I have been selected to come in and do a job. I know the pressure is on me to carry that forward, and I would rather have that pressure and be starting, than not,' he added.