Judging by the slumped over look of the players in that WR room, I'm guessing he was talking to ALL of them, not just one guy.
But yeah, the Browns think they'll be better without Coleman:
https://bleacherreport.com/articles/2789872-browns-new-receiving-corps-ready-for-showtime-after-trading-corey-coleman
(though I'm not sure Landry really feels that way ""Having Corey in the room, it helps us out, but at the same time, now that he's not here, we have to move past it," Landry said, per Cleveland.com's Mary Kay Cabot. "We have to move on. We can't dwell on losing a guy, so I don't see it having any effect on the team.")