Scunthorpe United chairman Peter Swann says sacked manager Mark Robins did not manage to "gel the side".
Robins, 46, was sacked on Monday after his side suffered a 5-0 defeat at Blackpool, leaving them with just two wins from the last eight league games.
The Iron are currently 16th in League One and are six points clear of the relegation zone.
"The conversation with Mark just went towards the inevitable, in the end," Swann told BBC Radio Humberside.
"We sat there and we both felt that it was time. When that happens, the conversation moves to how we can make this a decision for the betterment of the football club."
Robins previously managed Huddersfield Town and Barnsley before joining Scunthorpe in October 2014.
He led the Iron out of the relegation zone in his first season in charge, but they have struggled this season.
"He hasn't been able to gel the side and we've been inconsistent through the majority of the season. The way we capitulated (at Blackpool) was not acceptable," Swann added.
"Now we're into the new year we expected more - we expected a better start and it hasn't happened. Blackpool was a catalyst more than anything else.
"Mark really took it well and with dignity. He's done the best he can - it is just not good enough."