Olaf is getting worse each patch.
http://champion.gg/champion/Olaf/Jungle
Whether in the jungle or top lane, Olaf's win rate has been for the most part declining since the preseason.
This is most likely due to his core items constantly getting gutted, for example, the current Dead man's plate loses you 416 gold worth of stats/gold compared to the 5.22 version. Sterak's Gage has been nerfed, and will again be nerfed next patch. Season 6 keystone masteries adding more damage to the game make being a bruiser/off tank harder.
Olaf is clearly tied to certain items that have been rightly toned down, but he hasn't been the main offending user of them. How about a small buff as compensation?
My main idea is a buff that allows it to make more sense to deviate from dead man's plate. This would mean Olaf would need more movement speed in the later parts of the game.
How about something like +5 movement speed for each rank in his ultimate?
Here's proof that I play olaf and care for his well-being http://na.op.gg/summoner/userName=Liverymen
Thanks for reading <3