"The Top 100 is compiled based on conversations with NFL general managers, personnel directors, pro and college coaches and scouts. This is not a mock draft. Teams will skip around the board on draft day to make selections that fit their needs."
His list was helpful to me last year as I watched the draft--succinct and more on target than mock drafts. Bob Gretz calls Gosselin the "best pro football writer in America."
By the way, Gosselin has Tyson Jackson as the sixth best prospect and has the Chiefs selecting him (in his last mock draft).