Unless Brown is willing to give a cap friendly deal, there is no chance of affording him. He has shown to be a very right tackle, a good left tackle & guard. He has worked hard and earned the pay day; he was very raw, slow footed, bad hand placement type coming out of college.
With Lamar's, that is going to eat up 60% or so of the cap, then what?
How do you fill in the guards, the defensive line, the wideouts, the secondary?
There is good talent in the draft, most raw, and yes the Ravens have been good at filling in depth from the draft in those positions, but that would be asking a lot.
Unless you want to waste Lamar's running talent on the next 2-3 years while these young guys develop....