Sale boss Steve Diamond was left frustrated by the loss of fly-half Dan Mugford during his side's defeat to Gloucester on Friday.
Mugford went off with a head injury with the game finely poised at the AJ Bell Stadium and did not return, leaving Sale without a number ten on the field with AJ MacGinty also out. Former Wales scrum-half Mike Phillips filled in at fly-half for the remainer of the match.
Diamond said: "The pressure's on the medical people under the new HIA (head injury assessment) regulations.
"All you need to have is a slap on the head and they have you off the field for 13 minutes now and I don't know where we are going with it."
Mugford's setback aside, Diamond recognised that his side were outclassed by a visiting Gloucester outfit looking for their first win of the season after losing to Leicester and a draw with Worcester.
"We were second best by a country mile tonight, we just couldn't get any control," he added. "When we got control of field position our basic skill let us down.
"We lost Mugford in the second half and we've got a nine playing 10 so that confused the issue a little bit, but I thought we were playing quite well there.
"The most disappointing thing in the second half was that when we got to within four points, we gave those soft penalties away."