I would trade Griffiths before Lennon.
49 games in 6 years . Injury prone.
Has a reputation of being a really beautiful kick - but misses some really easy shots from 30 -35 out that become momentum killers. ( Melbourne game , Freo game in Perth - could of kicked the sealer , Freo game at MCG , Elimination final - off the top of my head) 12.15 this year.