Clarke, who had seen his side hold Leamington to a one-all draw on Tuesday evening, also confirmed both players have expressed a desire to leave the club - leaving to them both being dropped for the clash with the Brakes.
21-year-old Dobson, who was in the side which was defeated by Alfreton Town at the Impact Arena last weekend, is being strongly linked with a move to Sunderland with the midfield reportedly close to sealing a move to the North East.
Ferrier, who turned down the chance to move to Southend United during the January Transfer Window, was not named among the experimental side to face Alfreton, and is also being linked with a move away fro Banks's Stadium, with the former Boreham Wood man attracting plenty of interest.
Speaking via the Express & Star, Darrell said; "George Dobson and Morgan Ferrier - we have had bids from clubs that haven't been acceptable. They have shown a desire to leave, which is football.
"What I will say is they won't be going anywhere until they meet the figure we have set, simple as that. For me, I have to build without them. That can change, you never know in football.
"The way the game works now, with agents involved, players see a big, big pay rise may be around the corner. And sometimes they want to leave. But they won't be disrespecting the club.
"And to be fair they have been knuckling down. They won't mess me about that's for sure because if they do I'll chop them off at the knees. But they know that."
Speaking via the Express & Star, Darrell said; "George Dobson and Morgan Ferrier - we have had bids from clubs that haven't been acceptable. They have shown a desire to leave, which is football.
"What I will say is they won't be going anywhere until they meet the figure we have set, simple as that. For me, I have to build without them. That can change, you never know in football.
"The way the game works now, with agents involved, players see a big, big pay rise may be around the corner. And sometimes they want to leave. But they won't be disrespecting the club.
"And to be fair they have been knuckling down. They won't mess me about that's for sure because if they do I'll chop them off at the knees. But they know that."