Age/Injury history for all of them, but when you're talking about a Top 4 where the salary structure is 7.5, 4.5, 4.5, 3.5, you're in good shape and gives you flexibility to add, especially with cap rises.
On paper that all sounds good, especially if talking about Van, Ottawa, Cgy etc with solid defensemen.
While McCabe is a good player on a 'fair' deal, the rest of that Twenty million dollar defense core is made of old semi washed mids, with nothing but overpaid liljegren, hakanpaa, Benoit behind them.
Rielly
OEL
Tanev
McCabe
Would've been sweet D core in 2018, par for the course for bad Brad.