For Graham Barton, coming to Pittsburgh was probably just another pre-draft visit. One of many places he could go during next week’s NFL draft. It’s true. No one knows exactly how things will play out. But Barton visiting the Steelers was a huge step in believing his name will be on the card when the team turns in the 20th pick. As we’ve written about, Mike Tomlin and Omar Khan’s lack of Pro Day trips this cycle, just four, makes it more likely than ever that the Steelers’ streak of drafting players whose Pro Day the head coach and GM personally attended ends. Still, it’s hard to think the...…For Graham Barton, coming to Pittsburgh was probably just another pre-draft visit. One of many places he could go during next week’s NFL draft. It’s true. No one knows exactly how things will play out. But Barton visiting the Steelers was a huge step in believing his name will be on the card when the team turns in the 20th pick. As we’ve written about, Mike Tomlin and Omar Khan’s lack of Pro Day trips this cycle, just four, makes it more likely than ever that the Steelers’ streak of drafting players whose Pro Day the head coach and GM personally attended ends. Still, it’s hard to think the...WW…