Everton kicked off their pre-season schedule with a comfortable 3-0 victory over Barnsley at Oakwell.
Kevin Mirallas, Gerard Deulofeu and Ross Barkley all found the back of the net as the Blues enjoyed a well-contested run-out under the warm Yorkshire sunshine in front of 2120 travelling Evertonians.
The Toffees made a bright start, Mirallas testing goalkeeper Adam Davies inside two minutes, before the deadlock was broken soon after.
Mirallas was the man fouled 25-yards out from goal but the Belgian picked himself up to curl a beautiful free-kick high into Davies' top-right corner.
Barnsley, however, hit the post almost immediately through Alfie Mawson, then saw a Sam Winnell header fly fractionally wide.
But the Blues came close to a second through Deulofeu as the Spaniard latched onto a fine Kieran Dowell throughball, only to see his effort excellently saved by Tykes glovesman Davies.
At the other end, Joel Robles was then called into action after right-back Andy Yiadom chanced his arm from distance as the hosts fought back.
But Yiadom had his pocket pinched seconds later and when the ball found its way to Deulofeu in space down the left hand side of the box, Davies again had to deny the impressive Spaniard.
Darron Gibson then fired over the bar and Mawson was denied by Robles as the sides continued to trade chances.
And, with just seconds remaining before the break, Brendan Galloway hacked Marc Roberts’ header off the line.
The second half began with Ramiro Funes Mori, Seamus Coleman and Ross Barkley joining the Everton line-up at the expense of Tom Davies, Dowell and Galloway.
But it was Barnsley who should have grabbed a leveller inside a minute, Winnell guiding a free header over the crossbar.
The Toffees responded with a swift attacking move that resulted in Aaron Lennon seeing his shot deflected wide for a corner.
Chances continued to come Everton’s way. Deulofeu created one himself by escaping the attentions of James Bree and jinking past Roberts, but curled his shot agonisingly wide from the edge of the box.
However, a bright performance as a striker from the Spaniard deserved a goal and he was duly rewarded on the hour.
When he was picked out in space behind the defence by substitute Barkley, he coolly rolled the ball past Davies and into the net.
That was Deulofeu's last action of the game, with Shani Tarashaj replacing him for his first appearance in an Everton shirt. Joining him on the pitch were Aiden McGeady, Conor Grant, Bryan Oviedo and Tom Cleverley, with Mirallas, Mo Besic, Gibson and Leighton Baines going off.
Despite the second Everton goal, Barnsley continued to show plenty of enterprise and endeavour, with George Moncur forcing a save out of Robles, sub Stefan Payne firing the follow up into the side netting and Yiadom then rolling an effort wide.
But the Blues extended their lead on 71 minutes with a thunderbolt from Barkley.
Creating space on the edge of the box, the midfielder swivelled and snapped off a rasping left-footed drive that fizzed past Davies, giving the former Everton Academy keeper no chance.
Matthew Pennington entered the fray for the final 10 minutes, with former Barnsley youngster Mason Holgate – applauding all four sides of Oakwell and having it reciprocated – making way.
But the game was won, the ring rust removed and Ronald Koeman could begin to reflect on a comfortable win to kick off his reign in the Everton hotseat.