WOW, that may be the most optimistic post of the day. If Gibson is healthy Landry has zero shot at beating him out this year, doubtful he will beat out Mathews. Landry is a slow, small WR that will have trouble early gaining seperation vs NFL corners. He will have to work on his misdirection and will maybe see some action in the 2nd half of the season, but not as a starter. He will be fine in a year or so, but WR is one of the hardest to excell at coming straight out of college.
The first sign you will see is he will start off dropping more balls, as he is thinking about so many things at once. Drops will mildly affect his confidence for a bit, and he will have a mild slump. Then you will see him "get it" by mid season or so. But don't expect him to walk in day one and be a starter, it just isn't realistic. He doesn't have the skill set to create natural mismatches at this level. Liked the pick but he is no day one starter.