Trading is a major part of fantasy baseball. But I've found that people have different opinions on the subject. Some people trade because it's fun. Others trade because it's a real way to improve your team if you can find a few suckers in your league. For me, I generally dislike trading. I find it much more challenging to try to draft a team that's balanced and has no need to trade. I can see injuries throwing a wrench in that way of thinking, but usually there is no necessity to trade to be competitive.
The last two years, I've made zero trades in my most competitive league. I find that it forces me to pay closer attention to the little details that are commonly overlooked in fantasy. I am much more cognizant of drafting too much power or speed on draft day. I watch the waiver wires much more closely. I have been forced to develop managing gimmicks to squeeze out the most from my team. One of those gimmicks is the "hail mary" trick at the end of the year. I think I was the first to post that here at the cafe. When you stop spending time thinking about trading, you have a lot of extra time to come up with these cheesy gimmicks.
I have a friend who started fantasy about the same time I did and he went the opposite direction. He used trading to win all his leagues. I couldn't beat him the first year because he traded his way to six first round picks. I tried to compete with him by matching his trades but I fell behind obviously. I then went to the as little trading as possible policy and lost the next two years also. However, last year, I was able to win without trading once. It was very satisfying.
I guess my point is, if you're looking to get better at fantasy baseball, be careful of the "trading crutch." With enough trades, any team no matter how poorly drafted or poorly managed can win a league. If you lose, it is really hard to identify what went wrong if your roster at the end of the year looks completely different from the team you drafted. If you've never done so, I suggest you try not trading in one of your leagues this year. Go into the draft knowing that you won't be able to trade and see how well your team performs by the end of the year.
"And so he spoke, and so he spoke, that lord of Castamere. But now the rains weep o'er his hall, with no one there to hear." - The Rains of Castamere