Eddie Jones has admitted England are “not good enough to win the World Cup” in 2019, despite being currently ranked second in the world and one game away from back-to-back Grand Slams.

The Red Rose travel to Ireland this week as they look to set a new world record for consecutive victories with 19, after equalling New Zealand’s record with the hammering of Scotland at Twickenham to secure the Six Nations title last weekend.

But Jones, whose target has been winning the World Cup in Japan in 2019, believes England do not have the number of leaders to lift the trophy, although they do have more now than when he took over.

England vs Scotland player ratings Show all 30 1 /30 England vs Scotland player ratings England vs Scotland player ratings ENGLAND: 15-Mike Brown Busy game, his best for a while, not least for his left-footed kicking option. Equalled Matt Perry’s record as most-capped England full-back (36). 7/10 Getty Images England vs Scotland player ratings 14-Anthony-Watson Frustrating day at the office. Did little wrong but not as involved as he should be. Still learning the Chris Ashton-style tracking skills. 6 Getty Images England vs Scotland player ratings 13-Jonathan Joseph Wonderful early try when he came short off Ford and jinked past Hogg for his fourth try of the tournament. Looked a class act once again. 7 Getty Images England vs Scotland player ratings 12-Luther Burrell Failed to trust his left-hand pass in first minute, butchering a try. Not hitting the heights of last year but offers a physical threat. AP England vs Scotland player ratings 11-Jack Nowell Relished the open spaces with ball in hand but blew a try and got sucked in too easily defensively. Still a work in progress at this level. 7 Getty Images England vs Scotland player ratings 10-George Ford Threatened Scotland throughout with his delayed passes on the gain-line. Ghosted through for valuable try soon after the break. 8 Getty Images England vs Scotland player ratings 9-Ben-Youngs Improvement from Dublin. Took more responsibility and varied his game well around fringes. Holding off Wigglesworth’s challenge. 8 Getty Images England vs Scotland player ratings 1-Joe Marler Penalised more than once at the scrum but, after 10 successive starts, has plenty of credit in the bank. 6 Getty Images England vs Scotland player ratings 2-Dylan Hartley His lineout arrows were slightly off. He remains under fierce pressure for the No 2 shirt from Tom Youngs. 5 Getty Images England vs Scotland player ratings 3-Dan Cole Lucky to avoid yellow card for his goal-line lunge at the ruck. His discipline was a bit loose but put in good shift at the scrum. 6 Getty Images England vs Scotland player ratings 4 -Dave Atwood The Bath man is always a force in the maul and scrum but still needs to do bit more around the park. 6 Getty Images England vs Scotland player ratings 5-Courtney Lawes Big impact on his first appearance since the autumn. Prominent in lineout and put constant pressure on the Scots, as Russell can testify. 8 Getty Images England vs Scotland player ratings 6-James Haskell Questionable whether he is doing enough to fend off Wood’s challenge for the No 6 shirt. His forward pass denied Brown a second-half try. 6 Getty Images England vs Scotland player ratings 7-Chris Robshaw As consistent as ever. Stuart Lancaster’s fear must be whether the skipper can keep going at full throttle until the World Cup is done. 7 Getty Images England vs Scotland player ratings 8-Billy Vunipola Scotland kept him under wraps pretty well. Like Robshaw, no doubting his engine. His power from standing start is wondrous at times. 7 Getty Images England vs Scotland player ratings SCOTLAND: 15-Stuart Hogg Saved Scotland three times with his last-ditch tackles on Burrell and Brown during the early English siege. 8 Getty Images England vs Scotland player ratings 14-Dougie Fife Will be pleased with his efforts after coming in for Sean Lamont. Did not look out of place and made crucial try-saving tackle on Nowell. 7 Getty Images England vs Scotland player ratings 13-Mark Bennett Looks set for a long spell in the No 13 shirt. The Glasgow centre took his try well and shows terrific composure for a 22-year-old. 8 Getty Images England vs Scotland player ratings 12-Matt Scott Flew out the line to provide Joseph with his fifth-minute try. First Test start for a year and looked like it. 6 Getty Images England vs Scotland player ratings 11-Tommy Seymour Forced to switch from right to left wing and coped efficiently. Honours even with his battle with Watson. 7 Getty Images England vs Scotland player ratings 10-Finn Russell Good touches though did not enjoy the close attentions of Lawes and Co. But Scots must keep the faith - he can get a back-line moving. 6 Getty Images England vs Scotland player ratings 9-Greig Laidlaw Raised the tempo when called for. The experienced No 9 is a vital presence in such a young back-line. 7 Getty Images England vs Scotland player ratings 1-Alasdair Dickinson Tends to fade in later part of the match but his lineout work is as good as at any time in his career. 5 Getty Images England vs Scotland player ratings 2-Ross Ford Tends to fade in later part of the match but his lineout work is as good as at any time in his career. 7 Getty Images England vs Scotland player ratings 3-Euan Murray Equalled Allan Jacobsen’s caps record for a Scottish prop (65). The former Lion still has plenty to offer, in the set piece at least. 7 Getty Images England vs Scotland player ratings 4-Jim Hamilton Brought in by Vern Cotter for his physicality and strength in the maul and he didn’t let his coach down. Is a more disciplined player these days. 7 Getty Images England vs Scotland player ratings 5-Jonny Gray Scotland’s captain-in-waiting according to some. A menace in the lineout and shows maturity beyond his years – he was 21. 7 Getty Images England vs Scotland player ratings 6-Robert Harley Possibly shaded the battle of the blind-sides. Likes to annoy opponents and generally succeeds. 6 Getty Images England vs Scotland player ratings 7-Blair Cowan Earning an unwanted reputation for conceding penalties, but he remains a key cog in this side. One of the best turnover merchants around. 7 Getty Images England vs Scotland player ratings 8-David Denton Gave Scotland a good ball-carrying outlet and more bulk in the tight exchanges. Decent performance before giving way to Beattie. 6 Getty Images

“We don't have the density to win the World Cup, in terms of leaders,” Jones told the media on Thursday.

“But we've progressed a long way in the 14 months. We've gone from 1 or two self-reliant players, to three or four, and maybe five or six. But we're not good enough to win the World Cup.”

In winning 19 in a row, England would put themselves amongst some of the best sides in history, but Jones was keen to impress that it was as much as an achievement for former head coach Stuart Lancaster as it is for the team.

“It won't be an achievement for me, it'll be an achievement for the team. We're all in this together. The guy who should get a lot of credit for the success is Stuart Lancaster.”

England’s trip to the Aviva on Saturday will be their toughest of the championship so far with Ireland – who lost to Wales last weekend – having nothing to play for, other than the satisfaction of preventing Jones’ men from making history.

And the Australian said having nothing to lose makes Ireland an even more difficult task to negotiate.

“They've got no fear of failure, they were favourites and now they're out of it.

“They're a threat because they’re a very good team. Any team that beats the All Blacks is a very good team, and everyone in the Six Nations has one good performance in them. We've seen that.”

England welcome back Billy Vunipola to the starting XV after making his try-scoring international return from a knee injury off the bench against Scotland last week.

“Billy's done well since back in the squad, he's done very well since his return, and he's got the fitness now.

“Billy's got the energy, he's got certain qualities so we're happy to have him back.

Steve Borthwick praised Billy Vunipola's diligence in his recovery from a knee injury (Getty)

“Where he left off in the autumn, he was certainly a very good player. He's got to start again, get back on the horse and it needs to be a very big horse to hold him.”

Elliot Daly keeps his place in the team despite going through the return to play protocols after being on the wrong end of a tip tackle which ended his afternoon against Scotland early.

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The Englishman remains on the wing, with Anthony Watson starting on the other instead of Jack Nowell, with Jones challenging his side to go out and achieve “greatness” in Dublin.