He was signed with the intention of playing him, because he did do at first until it became clear he wasn't up for the task in the system we play. Challinor chose not to play Lewis, so to suggest his loan move was against Challinor's wishes is daft.
And on Evans; had Camps' wage demands not been as high as they initially were, then we'd probably have never signed him, as he and Akil Wright were seen as better value as a pair than Camps was on his own. It was only later down the like when Camps reduced his wage demands significantly that we signed him as well.
Neither loan move is a decision that big bad Simon Wilson has made against Challinor's wishes.