Shrewd move - basically offloaded Gardner to them, got his wages off the bill and Adomah too, while replacing him with a trusted former player of the manager and someone who our Sporting Director knows well for a small fee. Wikipedia has him down as an attacking midfielder, so could potentially be cover not just at RW but also for Jack.
Interesting that we've gone for players that can potentially cover a variety of positions, like Mings can play LB and CB, same with Hause and if we are in for James Justin, he can play on either side as a full back.