Forest Green boss David Horseman blamed ‘individual errors’ as his side threw away a two-goal lead in a 2-2 draw with relegation rivals Grimsby.
Gavan Holohan and Donovan Wilson cancelled out Kyle McAllister’s first-half double in an entertaining encounter.
The Mariners produced a second-half comeback to take a point which left Rovers in the bottom two.
"We will replace them (the players), but we haven’t got that luxury yet," said Horseman. "They try so hard but it’s no good if you don’t win the games."
Rovers almost won it late on but Omotoye’s header came back out off the upright and Sean Robertson’s stoppage-time effort flew over Cartwright’s crossbar.
Horseman added: "The first half was superb, the manner of the goals that we conceded was sickening.
"It’s been a trend that the cross towards the far post that they end up scoring from. We have got good quality players to come back but they’ve been out for far too long."
Grimsby's Joint-interim manager Ben Davies believed his side could have won the game, even after their first-half display.
"We were disappointed going in 2-0 but we gave a reaction in that second half," he added. "We had to instil the belief in them and then have that conviction.
"We’ve worked a lot on set-plays; it’s something we’ve been disappointed with."
Wilson’s first came just seconds after coming on as a second-half substitute, something Davies was pleased to see.
"The statistics of substitutes who win the points is through the roof and we’ve highlighted that.
"When you’re sat in there at 2-0 down, we were thinking ‘is it going to be one of those days?’ But we hammered away and could have had a couple more in the end."
Comments: Our rules
We want our comments to be a lively and valuable part of our community - a place where readers can debate and engage with the most important local issues. The ability to comment on our stories is a privilege, not a right, however, and that privilege may be withdrawn if it is abused or misused.
Please report any comments that break our rules.
Read the rules here