Stealing blinds is of little value. Playing in position (isolating weak players by raising their limps or 3-betting their raise (to isolate them & outplay them postflop) is key.
There are a bunch of differences between typical tournament play & deepstacked cash game (firstly... in tournament play it is very important to maintain one's stack.... so certain hands that might be + chipEV aren't necessarily hands you'll want to get involved in (didn't really explain that too well,.. 'chip preservation is important & escalating blinds in comparison to stack sizes will dictate how you might play in certain situations).... whereas in cash game, if it's +chipEV it's +$EV.
Brad Booth - > "Like a fight... it's not how you start, it's how you finish"