Pompey had 63 per cent of possession in their opening game of the season at Shrewsbury.
But it counted for nothing, as a stunning second half strike from Ryan Giles saw them suffer a narrow defeat.
The visitors’ hopes of an equaliser were not helped by the dismissal of debutant Ross McCrorie for a second bookable offence.
And Kenny Jackett admitted that although his side saw a lot of the ball, they simply did not do enough with it.
The Blues boss said: “Shrewsbury are a big side. They played five at the back and we just couldn’t go past people in the final third.
“We didn’t create enough clear-cut opportunities for the amount of possession we had in both halves.
“Our final third play and crossing – particularly from the right – wasn’t of the standard required to give their defenders problems.
“Lee Brown did put some good balls into the box and was a threat, but we needed all four of our wide men to thrive.
"Our final third play and crossing – particularly from the right – wasn’t of the standard required to give their defenders problems."
“We dominated and got up towards their goal, but Shrewsbury’s game-plan seemed to be letting us advance and wasting a bit of time when they could.
“It worked and their lad scored a fantastic goal – it looked like it was heading for the top corner from the moment he struck it.
“When the ball was then rolling across their box in injury-time, you need that timing and desire, which wasn’t quite there.
“I do feel like we’ve got a good squad, but right now it’s all about this game and so we’re all frustrated.
“We still have to bed in, find the right combinations and get that cutting edge – and we’ve got the players capable of doing that.”
Jackett had no complaints about McCrorie’s red card, which followed a challenge on Shrews defender Donald Love.
He said: “Ross had already been booked and I asked him on the way off if he’d caught the lad. He said that he did.
“There’s obviously some frustration from his point of view, but you can’t put the referee in a position where he can punish you.”