Well PP specialist is a thing, but I believe NHL defender should be able to defend first and foremost. Ghost wasn't perfect indeed, but Yandle - and I can't say I call tell you everything about every defender in the game - sucked super hard at it last season. It was very visible because he was in spotlight regarding his very important record... He should've been benched, a lot of people noticed and joked about it. It's cheap contract, but guy is just useless as defender and actually also not needed too much as PP specialist.
That's because Provy was playing PP a lot, which is also good reason not to compare – Yandle like never left the ice on PP while Ghost hasn't been there as much as he should.
To sum it up, it's just 900k but same as 900k flushed. Veteran presence my ass.