I think Kleven is NHL ready, but if they don't move a defencemen the numbers game could end up sending him to Belleville until room is made in Ottawa. We'll see what happens over the summer, lots of time for something to happen.
NHL ready is kind of an undefined term, probably with different meanings even within hockey circles.
I completely agree he can play in the NHL. But, would he benefit from seasoning? I think JBD could have played the entire year in the NHL last season and I suspect the only reason he was sent down was after the high ankle sprain his game wasn't at the same level and they had the option to send him down.
JBD being ready works well for the team because he's an RD that plays a quiet game. We need RD.
And to me, one of the best signs of organizational depth is having NHL ready players at your beck and call in the minors.
I hope they don't make trades this summer to move out D. It's a strength and Kleven can play in the minors. He's gotta pay his dues like 95% of the guys do. Let him get some seasoning playing top minutes and then have his physicality ready for the playoffs if needed