Exeter Chiefs director of rugby Rob Baxter and Saracens defence and forwards coach Paul Gustard have both agreed to join the England coaching staff for the summer tour of Argentina.
Andy Farrell and Graham Rowntree are both unavailable for the tournament in June due to their commitments to the British and Irish Lions, which has forced head coach Stuart Lancaster to make his move to replace the duo.
"We are delighted to have two quality coaches who have come through the English system for what will be a hugely significant tour for us and a big thank you should go to Saracens, Exeter and Aviva Premiership Rugby for supporting England in this way," Lancaster told the RFU's official website.
"It was important that we found two coaches who could mirror the skill set of Graham and Andy and come in and keep developing the players within our system.
"Paul, having worked together with Andy at Saracens already has a good understanding of how we operate and Rob, who has done a great job in developing a very competitive Exeter pack, will pick up the set piece and breakdown. Both will work alongside Mike as part of our integrated coaching team. We are looking forward to both coaches joining us after their club commitments finish on what is an important tour in our development as a team."
It is understood that the details of England's tour matches will be revealed in the next couple of weeks.