Always, always try to injure your opponents, try to knock them off the field. However, the "stab" skill will not give your player SPP when they use it to injure the opponent, so in my Dark Elf team, I avoided assassins like the plague even if they are kind of OP.
I ran two blitzers and two witches, one runner and rest linesmen. The two witches were my main scorers, one specialized into outrunning the opponent and the other into forcing them to concede the ball, while the blitzers were specced into fouling and generally thinning the opponent's ranks. I forget aside from Tackle what else I gave my linesmen.
Whenever you play against a physically weak team, like halflings, goblins, skaven, and heck, even ogres with those snotlings, remember that you don't have to score if you're ahead. Keep the ball and pick them off. If you're playing against a slow team like dwarves, bog them down with tackle zones. I often managed to go an entire half with them recieving without them making it to my endzone, with no turnover. If you have weak players on your side, stay the hell away from their "big guys". If you can, gang up on a "big guy" when you outnumber them for at least a 2-dice block, foul if you have to, but taking a ratogre or minotaur out of play is a huge breather.
And as was said, work your way from the least to the most risky action.
Also, always try to maximize your SPP gain per turn. If you can, do both a pass and a hand-over.
Last thing said, either learn how to use Hail Mary, or don't take it, ever ever, because it's going to fuck up your passes
so badly.
While your team is green, accept that you will leave the field bloody and battered. As your players gain SPP, you'll be able to fight back better and better.
Rack said:
You're already on the right track, Blood Bowl is a harsh, harsh mistress and the biggest lesson to learn is that no matter how bad it looks, the dice are being fair. Ruthlessly, mercilessly cruelly fair.
And then your superstar ranked scoring witch fails the roll on "going for it" on the endzone square, then fails the armor roll, then fails the injury roll, then
dies.
I felt no shame when I reloaded that particular save. While laughing my ass off all the time.
So no, I would argue that the dice are sometimes unfair. Hilariously, amazingly, "wow, that was freakin' awesome" kind of unfair. Jim&Bob make it all sound even better, too.