Big fan of Yacob but theres a bit of rose tinted going on here in my humble , firstly he was a top draw breaker but his passing was woeful in his last few seasons and not much better before it.
Secondly , he got trounced playing in a two under every manager that tried it . Saints at home under Pardew was painful to watch him struggle last season against their 3 man midfield .
The only way he shines is in either Steve Clarke's 4 2 3 1 or under early Pulis , don't get me wrong I love the bloke but he couldn't be more ill suited to the current set up with poor passing and little pace(I'm totallly against the current set up BTW ) .
Sadly Yacob is suited to how Karanka sets up with one up top so will do well for them.
Thirdly we'll likely not know whether Jenkins axed him or as some say he walked away from the club .