But Glick is in no doubt Clough is the right man to lead the team.
"We have been consistent all along. We have the right manager, we have the right plan and we are moving forward - that hasn't changed," Glick told BBC Radio Derby.
"If you go back six weeks, we were were 10 minutes away from being third in the table and while the supporters are feeling the sting right now, six weeks ago they were telling me - and everyone who would listen - how much they were enjoying the football.
"This is the same squad. We know we have it in us and we are determined to get that form back.
"We have a good squad and if we win at Watford this weekend we are right back in the mix. It's important we keep it in perspective.
"Losing to Crawley was a horrendous night, a terrible result for the club.
"We talk about the romance of the FA Cup and one of the great things is the giant-killings but it's no fun being on the receiving end. Everybody at this football club took it very hard and I know the supporters did as well.
"The supporters are upset, disappointed and embarrassed and they are correct to feel all of those things.
"Everybody is moving forward but it stings. We are devastated. But it is just one football match.
Glick also said Rams fans should cut Clough some slack following the manager's decision not to talk to the press after the game.
"Nigel, of all people, deserves a wide berth and a lot of latitude on what was a very difficult night," Glick said.
"I think he understands exactly how everybody is hurting at the club but we have to take it on the chin and move on."
Clough, 44, has been in charge at Pride Park for two years after more than 10 years as manager of Burton Albion.
This page is best viewed in an up-to-date web browser with style sheets (CSS) enabled. While you will be able to view the content of this page in your current browser, you will not be able to get the full visual experience. Please consider upgrading your browser software or enabling style sheets (CSS) if you are able to do so.