He was good yesterday but nothing more, and will have to improve if he's going to be what we need going forward.(for the future)
The response to his performance on here says a lot about how desperate Martinez left us.
Putting your foot in and being competitive should be a given.
It's not just that.
Being in the right place to make tackles / interceptions isn't just a case of wanting to stick your foot in.
He's clearly been bought as someone to do that and to then give it to the better technical players.
There have been lots of successful sides over the years who have done this.