When Eric Morris took the head football coaching job at Oklahoma State , he knew what was coming. If he didn’t, the realization came quickly. In the transfer portal era coaching changes lead to rosters losing talent at a frenetic pace. In Morris’ case, the Cowboys had to wait. While he was hired at the end of the regular season while leading North Texas to the American Conference championship game, he didn’t bolt for Stillwater. He stayed with the Mean Green through the title game before he jumped to take over the Cowboys . In doing so, he and his new staff — many of which came with him from North Texas — found themselves in the middle of a roster flip no coach would envy. These three numbers reveal the true nature of the flip. Three Numbers Show OSU’s Football Roster Movement Oklahoma State quarterback Drew Mestemaker. | NATHAN J. FISH/THE OKLAHOMAN / USA TODAY NETWORK via Imagn Images ESPN recently ranked each conference’s offseason, based on a variety of factors.…