Wolves unlike us had a plan both on and off the field. Their owners hired a good coach ( Nunes ) to implement a playing style that would be good enough not only to get promoted but to grow in the premier league then made the most of their business connections to get a football agent into the club who helped them to build a team.
Once promoted, they strengthened further with signings like Jimenez and were ruthless enough to loan or sell players they felt were no longer good enough despite starring in the Championship like Heldur Costa and Cavellero .
They seem light years away from us now