Quoting: SammyT_51
Rielly is our 1D and rest would be filled with young skilled talented 2way guys coming from within like Liljegren, Räsänen, Sandin, Durzi, etc... and like Dermott already did.. you need reliable defence core and all 6 guys to be efficient and smart on and off the puck.
Rielly barely fits the description of a #1 defenseman. most good teams who are considered to have good defensive lines have three guys that they can call top defenseman. Toronto has 1. best case scenario you find 2 guys that would take over the first line RD and 2nd line LD making dermott Zaitsev and Borgman your depth defenders.
look at other teams considered to have good defense. they all have the core three
Blues: pietrangelo, parayko, Boumeester
Preds: Subban, Josi Ekholm
Tampa Hedman, Mcdounagh, Stralman
Calgary: Giordano, Brodie, Hamonic
Jets Byfuglien, Trouba, Myers
biggest problem I see from Toronto fans and management is a complete unwillingness to part with a top forward to get a top defenseman. there is no other way its going to happen