England already look a formidable prospect for winning the Twenty20 World Cup and Eoin Morgan will take added satisfaction from the fact they have still not picked their best XI. Jofra Archer has only played one Twenty20 international and that was against Pakistan in early May last year when all focus was on building for that summer’s World Cup. Add Archer to an England team that recovered from 1-0 down to beat South Africa in a brilliantly entertaining T20 series and Morgan can be confident of his side’s chances in Australia in November. Archer is one of the world’s best Twenty20 death bowlers and for that reason a highly enumerated star of the IPL. Morgan has confirmed England will use 50 over series as the opportunity to rest Archer this summer as the focus shifts firmly on to T20. The first Twenty20 of the summer is against Australia at the Riverside on July 3 and is likely to be the first time Morgan will pick his best side, injuries permitting. Australia are the bookies’ favourites to win the World Twenty20 on home soil but conditions will suit England’s power hitters and Archer will improve the bowling, the weakest link. Every South African bowler had a lower series economy rate than England’s best Ben Stokes, who conceded runs at 8.23 an over. Tom Curran leaked runs at 11 an over despite a good game at Centurion and starring as England’s last-ball matchwinner in Durban. Mark Wood’s ten overs in three games cost an average of 11.80 and while Morgan is right to believe his team can chase down any score, they are making it harder for themselves. In his only Twenty20 against Pakistan, Archer took two for 29 from four overs, using his fast bouncer as a wicket-taking option before coming back later in the innings to bowl his repertoire of slower balls. He has since developed a knuckle ball that he used in the World Cup semi-final to dismiss Glenn Maxwell. It is taking pace off that is the currency in T20. Curran was England’s best bowler at Centurion and 43 percent of his deliveries were slower balls. Archer probably eases Wood out of the final XI, although he will be part of the wider squad. Wood is a confidence bowler and appears to struggle to recover from being belted around in T20, which is a real test of a player’s calmness under pressure. It is not that Wood lacks mettle, just he takes to heart letting the side down if he bowls a bad ball. Archer showed in his super over heroics in the World Cup final that he is able to move on immediately from being struck for a boundary and focus on the next delivery. With more than eight months to go before England’s first match in the Twenty20 World Cup in Perth on October 26 (against a qualifier still to be decided), they are in that rare position of having almost every place in the side nailed down. “I don"t think we"re far away from putting that squad together. We"ve played what we believe is our strongest side in these three games,” said Silverwood. “The more they"ve played together, the better they"ve got, we"ve seen the improvement throughout the series so I don"t think we"re a million miles away.” There is one final batting slot available and Silverwood dangled the incentive for those playing in the Indian Premier League and Pakistan Super League Twenty20 tournaments over the next few months to push their case. James Vince, Liam Livingstone, Tom Banton and Phil Salt are all players who could time a run of form to ease out Joe Denly or Dawid Malan from the squad that played here in South Africa. Joe Root remains hopeful but it is in England’s all-round best interests that he rests from one format. Jos Buttler will continue to open the innings after hitting a fifty in the final game, despite struggling for touch. Morgan has taken on the role of ‘finisher’ in the middle order and is becoming better with age in T20. He has averaged 54 in his last two T20 series with a strike rate of 183.24, smacking 24 sixes in eight games. Buttler admitted he feared being dropped for the forthcoming tour to Sri Lanka after struggling in the South Africa Test series but England’s backing remains strong. Silverwood said “not in my mind” when asked if there were thoughts about dropping Buttler for next month’s tour and he confirmed he will continue as keeper ahead of Ben Foakes. “It’s been a tough tour but you learn lots about yourself and you come through those tough moments,” said Buttler. “Having gone home for the one dayers I parked that and tried to leave it behind. T20 is a format I know extremely well and have a lot of experience in so I was very confident coming into the series and it is a format that suits me really well. “Was I worried [about being dropped? Yes, I think so. I’ve got the selectors to thank for showing faith in me and now I’ve got to go to Sri Lanka and play well.”