After dropping out of the Champions League and the Co-operative Insurance Cup already, another early exit was not what boss Tony Mowbray needed, but it was tempered by last weekend's return to the top of the Clydesdale Bank Premier League with a convincing 3-1 home win over St Mirren.
McGeady, Celtic's star player once again, took more encouragement from the display against the Israeli side, who will go through to the knockout stages with Hamburg.
"I don't want to speak too soon but we are starting to get the results and starting to play better as a team," the Republic of Ireland midfielder said.
"It could be the platform for us to kick on and go on a good run.
"We probably played the best football of our season against Hapoel. The first half was similar to the way we played against Aberdeen in the first SPL game of the season.
"We really need to get back to that.
"For some reason or other, we have just been lacking quality, in the final ball, passing in midfield; our all-round game has been lacking in the last couple of months.
"Slowly but surely we can get back to that and the last couple of games have shown that.
"We haven't been winning many games of late, but that's two on the bounce and hopefully we can win on Saturday against Aberdeen as well."
McGeady played down his fine recent form, adding: "I think I have played better.
"I'm happy enough but I'm just happy that the team's winning.
"The last few games I have played okay and have set up a few goals, but it's not just me, I think the team as a whole have been playing well.
"You want to enjoy your football but the main thing is that we are playing a bit better than we were a few weeks ago and we are getting the results now."
Robson drove in a powerful 25-yard free-kick to tie up the points after the break after McGeady had set up Samaras for the first-half opener.
But Robson admits he may not have done enough to start against the Dons at Parkhead.
Asked if he expected to keep his place, the former Dundee United player said: "Yes I do, but it's different this season.
"You see the way the manager works here, he likes to change it a lot, to keep players fresh.
"He likes to play me in certain games, that's the way he does it.
"I think I have played the majority of games since coming back from injury.
"But you have to remember I was out the best part of a year and I'm back for about two months and have played about six or seven games.
"So I need to get back to my fittest and play my best football as well, and I am getting closer."
Meanwhile, Mowbray revealed his rebuilding programme will not include Honduras defender Osman Chavez.
The 25-year-old has been training at Lennoxtown for the past week and played in two bounce games, the most recent against Partick Thistle on Tuesday.
But Mowbray said: "We are not going to take Osman. He did exceptionally well for us but I have made the decision that he is not quite right for us and we will wait and try to find extra competition for places in that area of the team at the right time."
Celtic 4/11, Draw 10/3, Aberdeen 9/1