The last few days have certainly been eventful for Buttler who recently took over the captaincy from Eoin Morgan and has also had to juggle batting and wicketkeeping duties.
During the T20 series defeat to India, the 31-year-old scored just 22 runs throughout the three matches.
Mott, who started his reign with a 3-0 whitewash of the Netherlands, played down Buttler's batting numbers and praised his attitude, saying: "He's very, very well respected in that group - a very balanced person. And I think they'll really gravitate to him as he gets his teeth into it.
"The way he responded, especially after the second loss and the series loss, I thought he spoke exceptionally well in the group about these being the times where you learn about character."
Buttler's onerous workload in T20 has led to speculation over whether it is sustainable in the long run.
Mott added: "Whenever you come in to take over the team when you've had such a dominant leader for a long time, it's a real feeling-out process where you're working out how you do stuff.
"I've been really impressed with how Jos has done that and more impressed that he hasn't actually got the runs but has still led really well.
"That shows a lot about his character and his presence in the group. And, when he starts scoring runs, that conversation will die off pretty quickly."
England kick off their three-match ODI series against India on Tuesday afternoon at The Oval.