Who is in the huddle with Maye from the WR standpoint Josh McDaniels comparing A.J. Brown to Patriots' legend Rob Gronkowski?

NFL minicamp is here! Wiggy wants to know these two things...
1-How much freedom does Drake Maye have at the line of scrimmage?
2- Who is in the huddle with Maye from the WR standpoint
Josh McDaniels comparing A.J. Brown to Patriots' legend Rob Gronkowski?! Let's hear from Gronk himself, as he weighs in on the comparison! What exactly does A.J. Brown's presence bring to this offense?