Well I have played Norse (quite) a lot.....
First up..... before you play have some beers.... got to get in the right frame of mind!
OK...
When blocking, unless you out number your opponent of you are playing a weaker team (Wood Elves, Skaven (without Claw etc) or possibly Amazon never follow up a push back block. OK you have to with your blitzers.
I favour a running game with a pass option. IE if I need to pass I will - however hand off works better. Use the blitzers to create holes to run through - frenzy can be very useful for this purpose.... BUT remember that you may need to make a second block... check that you are not 2 dice defender's choicing on the second block before making the first. If you have no choice, and you roll a block / push on the first block (with both having block) - take block - it stops Frenzy.
Use the blitzers to push players off the pitch.... but remember you must follow up so if you don't blitz with them you need to protect them afterwards.
I recommend getting Piling On for at least 3 blitzers.... make it 4 if you want to be 1 dimensional. This way if you do pile on with all 4 blitzers only 1 can be fouled next turn. This should help to get his players off the pitch first. If you don't reduce his numbers.... and you are playing a tough team be prepared to lose some of your players.
On defence have 1 blitzer towards each side line and 1 or 2 as deep backs. Put 3 linos on the line (or the Ogre if you have)... don't put more there unless you are playing wimpy Woodies.
When you have moved and done your important stuff take every 1 dice block going - only a 1 in 6 of failure. Then take 2 dice defenders choice blocks (I prefer this to dodging away).
Oh and stay away from any mean bu**ers with Mighty Blow, Claw, RSC etc. Hit them by all means but don't stand next to them..... oh and foul them when they are down.
Use your blitzers as the Strength play, your catchers as agility and try and mix up the linos to get some Guard / Dauntless and others Dodge if you are lucky enough to roll doubles. If you get +1 move take it.
Leave Throwers to last... they don't come with Sure Hands so the only advantage is the Pass skill... if you are not Passing then develop other players first.
Don't use the apoth on a Lino (unless he has a lot of skills etc). You will need him later to save your star blitzer.
That's all I can think of.... enjoy - Norse are fun.... but as teams advance they will get left behind...... and 1 hard game can kill them off.
Dave