Portadown boss Niall Currie said his side's display in their 4-0 thrashing by Crusaders at Seaview was "inexcusable".
The Crues raced into a 3-0 lead before the half-hour mark courtesy of goals from Keiran McKechnie, Fraser Bryden and Elliot Dunlop.
Bryden added a fourth in the second half against a dismal Ports side, with Currie left questioning his players' commitment after the game.
"Abysmal. Inexcusable really to a certain degree. Certain players were sitting on the beach already and I'm not having it and I told the players that," he told BBC Sport NI.
"We've a few players coming out of contract and we have a few secured so I'm not having that. Too many players looked as if the season was over for them. If they're going to do that for us and the supporters, they'll do it at the next club.
"We started awfully, gave the ball away consistently in the first 20 minutes, I've never seen a worse start like it. We didn't track runs and didn't work hard enough and the bottom line is they worked harder than us and deserved it.
"If that's what we're going to get from certain players who are negotiating new contracts then it's not going to happen. I'm not accepting that because that tells me some people can pick and choose their games and that's not the case."
Crusaders boss Declan Caddell was understandably delighted by the "clinical edge" shown by his side as they picked up a first league win since 3 January which moves them off the bottom of the table before their crunch game against relegation rivals Glenavon next week.
"We carried on Tuesday's performance [1-1 draw with Bangor] into today and I thought one to 11 the boys were outstanding," he said.
"Some of the play today was really good. We've been waiting on that, Fraser Bryden playing in a deeper role and he weighed in with two goals. It sets up nicely for next week."
