He's a second rower. That's his job! Next we'll have hookers who can't throw lineouts and props who don't pack scrums. If he doesn't win lineouts he's not a second rower so why is he being picked. if he's a back rower pick him there. That's right his work rates too low to be a back rower. So he's a notter. Not good at anything.
That's a bit of an old-fashioned view.
With Dennis, Higgers and Sharpe you don't necessarily need a 4th jumper. Timani can jump, he just isn't called very often as the other 3 are better jumpers.
I am not arguing for Timani's selection or non-selection, I just think rugby has more or less moved on from 'traditional' roles for locks. If you put Kane Douglas in there tomorrow (which I would like to see) I am not sure he would be jumping any more than Timani was.
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