"It's a great achievement but I know for him the most important thing is to win on Saturday", said Jones, who famously threw a bag of candies at Youngs when he first took over, saying he was too heavy.
"It is the last week of the tournament so it's exciting", Jones said.
In the backs, Jack Nowell replaces Joe Cokanasiga on the right wing and Henry Slade replaces Ben Te'o who drops to the bench.
'He's still learning from being around the squad and will feature heavily in our warm-up games for the World Cup'.
Jones says the comparison was "rubbish conversation" earlier in the week.
'We've got a good plan in place for him [Cokanasiga].
'What I do know is that every decision that is made here, no matter how big or small, is always thought about and this will be no different.' Nowell's return is one of four changes to England's starting XV, with Ben Moon, Mark Wilson and Henry Slade also recalled to face Scotland.
Owen Farrell was in agreement and the captain did not shy away from taking his share of the blame, having been charged down for Scotland's first try, intercepted for their fifth, the equaliser, and almost cost England with another controversial challenge in the final quarter. "If we impose our game on Scotland it'll be pretty tough for them", said Jones, whose team finished fifth last season after losing their last three games and then lost two in a row against South Africa.
"Scotland are a hard side - they are always at you, they play with a lot of enthusiasm and effort and have got a lot of attacking strings to their bow", he added.
England were rattled and replacement scrum-half Greig Laidlaw fell short with a long-range penalty attempt in swirling conditions that if successful would have seen them creep ahead for the first time. Before this game, we had the second-half performance against Wales, the November fixture...
"We still have a long way to go don't get me wrong but it's going to be massively important for Saturday".
"When we went to Doncaster and Sandy Park the support was fantastic, here at the home of English rugby I don't think there is a better or more special place to win a Grand Slam championship". 'It's about taking a measured approach at the start of their career, letting them develop their game and exposing them to the right games.