Johnson was a healthy scratch in each of the Blue Jackets' six Stanley Cup Playoff games. He requested a trade in January, citing a reduced role and wanting to better position himself for unrestricted free agency, but was not traded prior to the 2018 NHL Trade Deadline on Feb. 26.
"[Penguins coach Mike Sullivan] watched the three games leading up to when he was put in the press box and we felt he actually played pretty well," Rutherford said. "The coaches, [assistant Sergei Gonchar] and [Sullivan], have gone over the tapes over and over watching him play, and we feel very strong about this player, that he's going to improve our team. ...
"One of the things that we lacked last year was three pairings that we had a puck-mover on. Jack's a good skater, good puck-mover. He can play both sides, he can play on either specialty team."
The Carolina Hurricanes selected Johnson in the first round (No. 3) of the 2005 NHL Draft and traded him to the Los Angeles Kings on Sept. 29, 2006. Los Angeles traded him to Columbus on Feb. 23, 2012. He has 278 points (66 goals, 212 assists) in 788 NHL games with the Blue Jackets and Kings, and 21 points (five goals, 16 assists) in 23 playoff games.
Johnson was drafted by the Hurricanes when Rutherford was their GM. It was two picks after the Penguins selected Crosby No. 1.
"He's the one who drives the boat around here and I know him well enough to know that he's the kind of guy that wants five Cups, and the minute he gets a fifth he's going to want a sixth," Johnson said of Crosby, a former teammate at Shattuck-St. Mary's School in Minnesota. "That's important to me to be a part of that, to have someone like him leading the charge on that. All those things factored into this being a wonderful opportunity."