Marler was found out against Australia so its interest how he does.
The main thing we found out about Marler against Australia is he can't scrummage very well with a knee ligament injury. He shouldn't have been on the field after it happened, but there should be absolutely no blame attached to him for what happened.
Manu is a beast and brings more to the table then JJ (i can't be bothered to list the reasons why he is in the side rather then JJ). If Lancaster had confidence in JJ he would play him. He doesn't so JJ's potential is irrelevant. Lancaster has his ideas how his centres will play and i don't see him changing it. If TT has a blinder then it be interesting, however Barrit has enough credit in the bank that i can't see him being dropped soon.
Tuilagi is slower than Joseph. Joseph has a better step. He is more likely to concede a turnover than Joseph. He is less likely to get an offload away than Joseph this season (in the Prem). The main thing Tuilagi brings ahead of him is immense raw power which does mean he tends to create line breaks and the fact he's had a good rack of international caps to prove himself, while Joseph has had a couple of caps in South Africa behind a beaten pack and malfunctioning backline. I do believe there is a genuine question about which one should be picked with both fit - or, indeed, if we can fit them both in, as Greenwood suggested (Leicester do believe Tuilagi might be a long term 12). I'd give the shirt to Tuilagi at the moment, but it should be close.
However, this is somewhat besides the point. The point is you said Joseph didn't fit into Lancaster's safety first mentality, when actually he's statistically a better defender than Tuilagi and has been for a season and a half at the very least. Those statistics say you are wrong. He is a very secure defender who, in the words of an England coach, "hardly ever makes an error".
And of course, to get into tomorrow's England side, Joseph didn't have to better than Tuilagi. He just had to be a better 13 than one of Twelvetrees and Barritt; considering that's not the accustomed position of either, you wouldn't have thought it that hard. He hasn't, I think Lancaster might have made a mistake. You can see his reasoning, he wants his playmaking 12, and he wants Barritt to babysit him, and I'm happy to see Twelvetrees get a shot, but he's left his next best available 13 out to accomodate this. If Lancaster doesn't trust Joseph at all, that would be an incredibly peculiar volte face as so far he's trusted him 4 times against South Africa and New Zealand (he's missed a grand total of one tackle in those games), bringing him straight back from injury to participate in the Autumn tests. Lancaster's own words on him:
“I’ve never been afraid to give young players the opportunity
if they have shown that they have the temperament,†Lancaster said. “And No 13 is an area we need to look at. Jonathan is one of those who has done well and is in the mix.â€
In short, you're quite demonstrably wrong on everything you've had to say specifically about Joseph.
(quotes taken from the Daily Telegraph -
http://www.telegraph.co.uk/sport/ru...Joseph-against-Springboks-in-second-Test.html)