41-year-old Clarke, who expressed his anger as his side slipped to defeat against County, admitted that his side simply failed to perform after both managers had opted to make a long list of second-half substitutions.
The former Bristol Rovers boss believes that the team's struggle only goes to highlight the need to make more additions before the summer transfer window closes on Tuesday, 3rd September.
Whilst insisting there are no deals close to completion, Clarke revealed that, following Morgan Ferrier's decision to request a transfer, a striker is amongst his top priorities with the Saddlers currently only able to call on Elijah Adebayo, Josh Gordon, and Mitch Candlin, along with a couple of Academy prospects.
Speaking via the Express & Star, Darrell said; "There is nothing too close but we certainly want three or four more in. Certainly, at the top end of the pitch, we need some cover.
"And I’d like to bring one more experienced player in as well. I don’t want to be short at the back that’s Obviously the defensive record last season wasn’t great.
"I want to make sure we have got leaders back there. But I thought we defended superbly at Notts County at times. We held our line really high and caught them offside on numerous occasions. That is testament to the work we have been doing with the boys."