First of all I want to make clear that I really like Matt LeBlanc. He was good in his "Joey" days but he really excelled in "Episodes" for which he won a Golden Globe in 2012.
"Man with a Plan" is your average and trite family situation comedy, with a fake laugh track triggered every 3 seconds. And that's where the main problem arise...
LeBlanc could carry in his shoulders a far more demanding comedy than MWAP. He would be a lot better in a less family-orientated comedy. Like "Episodes" was. Something with more adult themes.
Here the script takes advantage of the ...weight he seems to gain these last years, and presents him as a ...butch constructor, who tries to take care of his 3 kids after his wife decides to start working again.
For me this was a poor choice for Matt LeBlanc. In this part looks a bit stiff and inferior than other comedians with similar sitcoms like Kevin James in "Kevin can wait" or even Ken Jeong in "Dr.Ken".
I'm a fan so I will keep watching, but for me he should have chosen something more original, with more "adult" humor, where he could shine with his talent.