His concerns have been made more acute given his side's hopes of making the finals have been hampered by losing to Sweden on Friday night.
The Irish seemed dedicated to a long-ball game during that match, with the attacking instincts of Wilson and intelligent passing of the likes of James McCarthy being nullified as a result. "I don't think we get in enough positions to get ourselves forward," said Wilson. "I think we need to play through the middle a bit more and pass the ball to create chances for us to go forward more. [Playing a long-ball game] doesn't help."