I'm thinking Brands will be finding attributes that fit a style. Iwobi has a good energy about him/wins the ball in the final third well.
Some players (Pienaar as a quick example Ajax great, Dortmund terrible, Everton great, Spurs.... ) just fit into an environment and style.
Hopefully Iwobi can do the business here, but like Silva has just said, he has to do more in front of goal/score more goals. If he's scoring 3 in the league last season for Arsenal, what can we expect from him here?
It's a fair assumption the lad wasn't a priority target, hopefully we've not just brought him in as a "we had to get someone"