Finally we can no go with a super huge-ball lineup!!!
PG: Brown - 6'6"
SG: Tatum - 6'8"
SF: Wagner - 6'11"
PF: Kornet - 7'2"
C: Taco - 7'5"

Jokes aside though, I do like having some actual size on the roster. At least now we have the OPTION to go big with Wagner/Thompson or Wagner/RWill from time to time if the situation demands it. Could prove helpful against bigger teams like Philly. Embiid might no longer be able to COMPLETELY steamroll anybody we throw at him.
Fournier also gives us another wing with decent size (along with Semi, Tatum, Brown) that we can throw at guys like Kawhi / Lebron ion the defensive end if guys get in foul trouble.
Adding Fournier also makes is a bit less dependant on Kemba's scoring - gives Danny a bit more trade flexibility if he did look down that path, as well as another potential trade asset. A package built around Kemba and Fournier could be inciting if the Wizards decided to move Beal, for example.