TRANMERE MANAGER LES PARRY: "That fell into the category of a battling performance. At half-time we felt Orient had only hurt us and we gave the ball away and from set plays. We needed to stop giving the ball away and stop giving free kicks away and we carried on doing both. But we defended well and the save Owain Fon Williams made just before our goal was the turning point.
ORIENT MANAGER RUSSELL SLADE: "Sometimes it's difficult to put your finger on just why you haven't won a football match or got something out of the game. What we can say is that we haven't scored a goal in our first two league games and it makes life a lot easier if you can do that. We haven't been able to score so far and we've conceded a goal off the back of what was our best spell of the game."
TRANMERE took an early repayment from the experienced players signed during the summer in the form of the three points they took away from Brisbane Road on Saturday.
David Buchanan and David Raven, seasoned recruits with more than 200 senior games apiece behind them, were introduced on either side of the backline to steadying effect on Les Parry's team.
Left back Buchanan added a bonus of a spectacular winning goal, fired into the top corner of the net from 30 yards, an hour into the contest.
No one could claim it was entirely out of the blue as the former Bury and Hamilton Academicals player scored with a similar long-range strike in a friendly against Liverpool a couple of weeks ago.
Buchanan's goal could not have been the winner without an exceptional save from goalkeeper Owain Fon Williams, another recent recruit, that prevented Orient taking the lead through Jamie Cureton a few minutes earlier.
So Rovers started the away program in League One in the same manner as they finish the last one, with a win at Leyton Orient. This was a different kind of success to the 3-0 success in April, a result that effectively wrecked Orient's hopes of making the play-offs.
There was precious little between the teams here. Fon Williams' save from Cureton was as important as the goal that followed six minutes later because Orient were building up momentum to take the initiative in the first quarter hour of the second half.
Home manager Russell Slade could justifiably claim the game might easily have gone the other way at that point.
The changes Parry made to the side well beaten by Championship pass masters Doncaster in midweek had the effect of making Tranmere's football a little more measured and steady. They kept the ball better when playing out from the back than they did at the Keepmoat Stadium and the return of Enoch Showunmi helped them to build attacks in a more cohesive fashion.
Showumni holds the ball up better than most centre forwards at League One level - hence the rejection of Notts County's £125,000 offer last week.
No-one in the Rovers dressing room is likely to be carried away by victories in the first two league games. The defeat at Doncaster was good for perspective. But as Parry pointed out, at least Tranmere won't be burdened by reminders about how long it took them to the post first home and away wins of the campaign. The jobs were done day one, eight o'clock.
Orient are by no means a modest scalp. Seventh placed finishers last season, they punched above their weight in a manner Rovers hope to do in this campaign.
Tranmere started purposefully, winning the balance of possession during the first half. They did not make the advantage count in terms of scoring opportunities, largely because they were often let down by the choice or delivery of the final ball.
Orient didn't fare much better until a burst of pressure towards the end of the first half. But the quality of Charlie Daniels’ delivery always proved a threat at set plays.
A couple of Daniels free kicks swept in from the right, caused alarm. Midfielder Jimmy Smith put a header wide of the target from the first on 17 minutes and probably should have scored from the second, which he nodded into the chest of Fon Williams from six yards.
Tranmere created a clear opening on 32 minutes when neat work from Showunmi put Adam McGurk clear on the edge of the box. The young Irishman, who scored twice in the game in April, steered his shot wide of the advancing Lee Butcher but also a couple yards wide of the right hand post.
Orient enjoyed their most positive spell in the 20 minutes either side of the break. Cureton, finding space on the right, picked out the run of Alex Revell to the far post and the big striker, attempting a first-time shot, blazed over from a dozen yards.
Mark McChrystal, attempting to clear a sharp low cross from Dean Cox, sliced the ball narrowly wide of his own goal. Fon Williams scrambled away long-range efforts from Cureton and Cox soon after the interval. Cox must have thought he had Fon Williams beaten with a fierce shot from the edge of the box on 54 minutes. But the Welshman went full stretch to touch the ball against the left-hand post and was quick to scramble into position to cover Revell's effort from the rebound.
Tranmere's goal, six minutes later, took the wind out of Orient's sails. Buchanan, pushing forward to support the attack, had several options when a cross was cleared to his feet in the inside left spot 30 yards from goal.
A shot that crashed into the top corner of the net wasn't the one Butcher was expecting but it was power and accuracy rather than surprise that beat the keeper.
LEYTON ORIENT (4-4-2): Butcher, Omozusi, Chorley, Cuthbert, Daniels, Dawson, Spring (Mooney 63), Smith (Richardson 78), Cox, Cureton (Porter 78), Revell. Not used: Forbes, Laird.
TRANMERE (4-4-1-1): Fon Williams, Raven, Goodison, McChrystal, Buchanan, Devaney (Akins 79), Weir, Welsh, McGurk, Robinson (Labadie 73), Showunmi. Not used: Kay, Courtney. .
GOALS: Buchanan (60).
CARDS: Goodison, McGurk
REFEREE: James Linnington