Evans has only played 1 1/2 games for the club! Far too early to be talking about a permanent deal.
Fair point, but Jonathan Greening's played 0 games for the club, if NP thinks he's good enough he's worth signing.
It's worth waiting until the end of the season for Evans if he's here already though, unless NP has plans to use all 5 loan slots before the loan window shuts. In that case Evans would be worth a risk, he's a quality player.