In general you are 100% correct. However in a few isolated cases there are mitigating factors that merit consideration. This five game win streak is one of them.
Look I certainly don't believe that the team that put up the win streak was going to be an over .500% team. However I do not believe they would have been 4-17 either.
But the difference in that streak vs. the current one is the style we were playing and most importantly the players we were playing.
Troy Murphy is that bad on defense, there I said it.
I hate saying it but it is what it is, he may be the single worst defensive power forward I have ever seen. I know that sounds like hyperbole but I am being serious and the fact that he has improved his defense over the past 5 games or so just tells me how bad he really was after his return.
Look I know you don't like Roy, I've always known you don't like Roy and yes I will admit that I may be trying anything to see something that may not be there. But as was mentioned above I think Roy is being killed on defense because he constantly is leaving his man to cover the middle. Notice Troy Murphy does not get into foul trouble? Well that is because he does not even pretend to cover the middle, which I admit may not be his job but still.
I would like to see Roy just play 5 games with Jeff Foster has his power forwards and then see if he is still as bad defensively. I don't know the answer to that but I have a guess and my guess is that you would not be nearly as critical of Roy if he had a power forward who could help take some of the pressure off of him defensively.
That should sound familiar to you btw. Remember everybody called him Reek Smits up until about 93 when a certain other player started to play besides him.
You have been beating the "no center" drum for a good long while now and I think that maybe this time around you are the one living a little in the past. I admit I come the era of the big man (80's & 90's) so yes I am more comfortable with them. But I think you are stuck back in the early part of the 2000's and fail to see that almost every great team has a legitimate center playing on it.
Boston - Perkins (legit center)
Lakers - Bynum (legit center)
Magic - Howard (Legit center)
Nuggets - Nene (maybe a forward however he is as big if not bigger than Bill Russell)
Hawks - Horford (Probably a forward however he is a very strong post player)
Spurs - Duncan (legit center)
Heat - O'Neal (finally after all of these years he is now calling himself a center)
Cavs - O'Neal/Big Z (legit Centers)
You see when I think of the past and say centers I think of Robinson, Ewing, Hakeem, Etc.
You think Stanley Roberts, Kevin Duckworth, John Koncack, Chris Dudley.
Where does Roy fit in that group? He certainly is not ever going to be in the upper class. However I don't believe he is going to be below any of the bottom players either.
I think somewhere in the middle is about right.
It was also brought up that Roy can have his confidence shattered. Well to be honest with you I will agree with you here a little bit and say we need some more mentally strong players. But we have gone way way out of our way to protect the delicate mental state of Rush, yet Roy is openly told he can't play certain types of players.
I think with a different coach and a different front court partner Roy would be a different player.