Stuart Lancaster admitted England’s 20-0 victory over Scotland at Murrayfield should have been more comfortable.
Tries from Mike Brown and Luther Burrell helped dispatch feeble opposition and thrust England back into RBS 6 Nations title contention.
Lancaster was pleased with a highly-effective performance that kept Scotland pointless for the first time since 1978, but accepted that more tries should have been scored.
“We were pleased with a lot of aspects, but are frustrated that we didn’t convert more of our opportunities because we dominated the second half,” the head coach said.
“There were chances there that we didn’t take and we definitely have regrets over the points we left out there.
“We played some really good stuff in difficult conditions. Scotland had to defend desperately.”
The centre partnership of Billy Twelvetrees and Burrell impressed for a second weekend in succession and Lancaster was delighted by their contribution.
“The work that (assistant coaches) Andy Farrell and Mike Catt have done with Luther and Billy is really paying off,” Lancaster said.
“The timing and number of options going into the line were excellent and Luther’s try was a good case in point.
“They’re going well as a partnership, especially given that they’ve only trained together for two weeks and have played twice.
“They’ll need to be on top of their game against the Irish centres, who are clearly world class.”
Another pleasing aspect to emerge from the trip to Edinburgh was the lack of injuries with Joe Launchbury suffering a dead leg and Jonny May departing with cramp.
Both will be available to face Ireland in two weeks time.
Lancaster insists England are back in the title frame after atoning for their 26-24 defeat by France on the opening day of the Championship.
“Even though we lost to France we always felt we’re still in it,” Lancaster said.
“It does set us up for an important game against Ireland. Ireland have played two, won two and have played really well. But we’re confident also.”
France, meanwhile, maintained their 100 per cent Six Nations record with a 30-10 victory over Italy.