The former Chesterfield boss was unhappy with his injury-free side's display in their 0-0 draw with Accrington on Saturday and admits changes could be afoot.
The Pilgrims have scored just six league goals and Sheridan admits even their basic passing is letting them down.
"Is it time for change? That's something I have got to really look at now," he told the Plymouth Herald.
"We have got to really concentrate on passing the ball to where whoever is receiving it wants it.
"It's another blank for us, and as we all know if you don't score goals you won't win games. It's a big problem at the moment.
"Am I losing patience? We are not winning games at the moment and we are not scoring goals. It might be time for a big change and to give people an opportunity.
"There are one or two probably thinking when are they going to get a game?"
- Sports & Recreation