I agree with what you're saying, and I want to see this happen too.
I loved that we signed John Brown & Cole Beasley last season and they were a big help to us.
The problem is that Zay Jones could not be counted on & Robert Foster disappeared.
What I think the Bills should do is approach the off season with a strong emphasis on improving the offense.
Get a veteran WR in free agency and then draft 2 more WR's. Hell, draft 3 WR's. The Bills need all the help they can get.
After Brown & Beasley, every other spot should be open competition, and Brown & Beasley aren't getting any younger.
I'm not saying we should completely ignore the defense this off season, we do need help at DE and getting another CB would be wise.
I do trust Beane, and I think he we will do everything he can to help the Bills get even better than last year. Just have to wait and see.