Bauming is saying on twitter the Glass release is mostly about the emergence of Demerio Houston. They are actually going to start Houston on the boundary side, moving Rose from boundary to field. While there's less of a difference now, generally the boundary is premier spot where you'll use your best man coverage guy.
Glad to see it for Houston, he paid his dues last year for sure. He was one of ~20 DB's, nearly all CFL rookies, on the roster when camp opened. He made the PR. A week or two later, his ~10 year old daughter was shot in her bedroom (a stray bullet from a dive-by i think). Almost left the team, wife/girlfriend? convinced him not to, and they came up to Winnipeg a little while after that. Got into 1-3 games last year. Then was the only one of their 3 or 4 PR DBs last year that was brought back this year, now getting starting looks.
As for Rose he is the highest paid DB in the CFL. To be moved off boundary to field is not good. I do 100% think he hasn't been at all healthy this year to date, hopefully he is after 15 days and looks better. It cannot continue where he was.