England fell apart in the second half Scotland as a 31-0 lead was squandered with only a converted injury-time try salvaging a 38-38 draw.
Jones plans to recruit an expert to focus with his team’s outlook.
“It’s like we now have any hand grenades in the back of a jeep and sometimes they go off when there is a lot of pressure,” said Jones.
“We have some of them also we have to eliminate them”
Squandering leads is a theme that came to prominence on past summer’s tour to South Africa and lasted in the Six Nations against Wales in Cardiff and then against Scotland at Twickenham on Saturday.
Jones maintains the flaw is a result of how England’s traumatic band exit out of their own World Cup four years ago, however is adamant it will soon be rectified in time for this season’s tournament, which starts in September from Japan.
“The team also has probably had it as the 2015 World Cup and we are working on an activity to repair it,” said Jones.
“if you have a tricky tournament or games that are difficult, often there is a lingering notion process there. Some times it takes more than you would like to repair it, however it is fixable.
“It is available in once you receive under great pressure, lots of pressure, also you can’t work out a way to return from exactly what you really want todo.
“I have one person that’s going to help us that is clearly a bit of a specialist. I’m not discussing that name together with you today. I haven’t used her “
Jones is convinced that this summer’s pre-World Cup training squad, along with their four warm-up matches, offer enough time to work with the problem.
“After we won 18 games in a row, we had those problems. Plus they’ve come to the fore in a couple of games recently, which is beneficial for people since it has made it quite evident exactly what we have to fix to be the greatest team on earth,” he said.
‘We believed the task was completed’
England’s most capped scrum half Ben Youngs rejected Jones’ explanation as to why the team is exposed to self-iNFLicted wounds, although there wasn’t any hiding his frustration in a bewildering dis-integration contrary to Scotland.
“I’d not trust that at all. I do not think that it’s pressure; we merely need a much greater understanding of where the endings of this game is and what we need at the present moment,” Youngs said.
“We are looking at ourselves in the mirror going:’What have we done?’ You can not be that ruthless in the first half and then be really toothless in the minute.
“We thought the job was done and it had been far from done. We were too loose, too flippant with this chunk. There’s likely to be a lot of reflection about this one.”