"We have got to get two good wins from these next two games to regain confidence," Hill told the Worcester News.
"There are a lot of things we need to get right in Europe and we will pick a strong team against Stade Francais.
"Most of those who played against Newcastle will play again and we will give an opportunity to a few backs and forwards.
"We will be taking it seriously and want to get off to a good start and a win against Stade Francais. We need to use these two games so that we improve and when we come to play Bath."
Worcester help kick off the 2011/12 Amlin Challenge Cup on Thursday when they welcome French giants Stade Francais to Sixways.