Makai Lemon comes into his rookie season with high expectations. The first wide receiver -- and offensive player -- the Philadelphia Eagles have drafted in the first round since DeVonta Smith, Lemon is expected to be the WR2 in Sean Mannion's offense. This offense fits the strengths of Lemon's game -- smooth route running, getting passes in the middle of the field, and creating space. Lemon should be primed for a good rookie season, based on how polished he is at wide receiver without playing an NFL snap. What if Lemon struggles in year one? What if he experiences soem growing pains to begin his career? The Eagles wide receiver group could be in for a rude awakening this year, especially with A.J. Brown not expected to return. What could stop Lemon from having a big rookie year and earning the WR2 job? The offense goes back to its usual ways The Eagles offense is going to look different this offseason, and at the beginning of the season.…