Jones' immediate concerns lie with this summer's Tests in Australia, where England hope to stay in the top four of the world rankings in order to avoid being in another 'Pool of Death' in next year's World Cup draw.
England moved up to second after their Six Nations win, but Jones admitted the standard was poor during the early rounds.
'From a rugby point of view, the first two weeks were terrible,' said Jones. 'The rugby was horrific. In the last three weeks, the level really raised. Players come out of club rugby, where they play an attritional and quite slow set-piece game, so it takes time to adjust.'
The 56-year-old had just two full-time assistants, Steve Borthwick and Paul Gustard, during his first Six Nations, but confirmed the additional appointment of Neal Hatley.
Hatley will leave Bath at the end of the season to take up a position as scrum coach, working two days a week with the senior team and three days in player development.
'Neal is the type who will thrive in an international environment,' said Jones.
'Successful English rugby teams have always had strong, powerful, dominant scrums, so this is an important appointment.'
Hatley, 46, said: 'I can't wait to get started. There is an enormous amount of talent in English rugby.'
Harlequins and former England No 8 Nick Easter is also hoping to develop his coaching career, taking up a defence-specialist role at his club next season under John Kingston. The Quins back row hopes to balance coaching with playing, but admits he will have to alter his relationship with team-mates after more than a decade as a player.
'As a coach, you've probably got to keep a little bit of distance,' said Easter. 'That's going to be the hardest part. Getting that balance right is key. You're telling them off one minute and lacing up the boots and trying to have a laugh two minutes later. The coaches have their own parking space. There'll be a bit of banter.'
Quins face Exeter in the final game of the season, when the Chiefs will be hoping to seal a home play-off by finishing in the top two in the Aviva Premiership.
Rob Baxter's side were only promoted to the top flight in 2010 and have never qualified for the play-offs, but their director of rugby insists it is time to lose their reputation as outsiders.
'We're potentially two days away from winning the Premiership,' said Baxter. 'Here at Exeter we normally talk about the next step and next stage. But once you tick off the top six, you've got to want more, and once you tick off the top four, you've got to want more.
'I'm not afraid to say we want a home semi-final and we want to win the Premiership. Why not?
'We're two games away from being champions, regardless of what happens in the next couple of weeks. So let's start talking like it and putting pressure on ourselves to deliver.'
