Silverwood, the incumbent fast bowling coach of England, was elevated to the post of head coach following the decision of World Cup-winning coach Trevor Bayliss to step down.
The relatively unknown Silverwood, who previously coached Essex to their County Championship title in 2017, will oversee England's tour to New Zealand next month as his first assignment in charge of the team.
Speaking to reporters on Thursday, the 44-year-old claimed to harbour a good rapport with the existing England squad that would lead to better results.
"I think (there's a good) relationship between myself and the two captains (Root and Eoin Morgan), and I've got a strong relationship with all the players and backroom staff," Silverwood said.
"I understand how the system works, how the team works. That continuity is key."
He admitted England's dwindling Test fortunes demanded a rethink of their tactics and spoke about the importance of developing a dominant side by the time of the next Ashes series.
"Job number one is helping Joe – we've got a lot of support around Joe, but to keep moving forward so that in two years' time we can go to Australia and make a real impact," he said.
England have been a victim to a number of batting collapses in red-ball cricket over the past few years as Silverwood pointed out the need for his batsmen to apply themselves at the crease for long periods.
England cricket's managing director Ashely Giles was part of the three-member panel that chose Silverwood ahead of Gary Kirsten despite the latter's illustrious coaching career.
Giles labelled the newly appointed England coach as "the standout candidate".
"His character, his values, he's a winner. You can only prove that in the environment you're in and he's proven that in the domestic game."
"The job he did at Essex was fantastic and we're still seeing that legacy now. I think the sign of a good coach is leaving the club better than you found it and that seems to be in evidence," Giles added.
"The relationship, the knowledge of what we're doing – we've got an exceptional bloke who cares deeply about what we're doing."