Davies is a premier league player, if we sell him say for 6million Coyle will probably bring in 2 or 3 players that could help get us promoted but those players may not good enough for the premiership. We need to look at the long run, we need to keep as many of our players as possible if we want any chance in staying in the premier league if we come back up
Exactly. You sell a player who will likely shine in the Championship and who do you replace him with? You can't just go out and buy someone else who will also shine in a lesser league because that calibre of player is at a higher level and won't come to where we are right now. To replace Davies, we'd likely sign a couple of £1m players, probably who are already in the Championship, and if we get promoted, they'll need to be replaced because they're not Premier League quality.
On the face of it, £6m for Davies is good money. However, are we in a position to buy a suitable replacement? I don't think we are. If we were still in the Premier League, we could sell him for £6m and buy someone as good for around the same sort of money but we can't attract those players now.
I think the best way to get back up is to avoid selling players. What clubs should avoid is taking 'good' offers for short term financial gain. £6m is good money for Davies but firstly, he may be more important than £6m next season and secondly, if we do sell him, we aren't going to be replacing him with someone as good.
Personally, I'd keep him even though £6m is probably an accurate valuation.