Keep it simple
1. You will already have 2-3 superb players and maybe a couple of fast trainers. Keep an eye on those. Look at their age & value.
2. You can afford to sack some dead weights i.e rating 10/11 & get experienced players with 14 rating in the market. Use the PC version so u can check out his stat. Even if he is cheap + high rating, but his stat is impressive (last 5 average of 7 e.g. 7-6-7-8-7) then go for him.
3. I like dual role players so if u do, find them.
4. Just slowly build your stadium no need to rush. Priority shd be given to Medical Centre (for Medic packs) and training centre (health packs). Once you max up the upgrades you can build your stadium, car parks, fan shop, academy in that order.
5. Play 4-4-2, 3-5-2 depending on whcih formation your player is comfortable with (trial and error). I suggest to keep it simple like play Normal mentality, mixed passing etc. You can experiment as you go along. You will find out some players do not like a certain formation or some strikers prefer to play alone.
6. When you bid, avoid goin into bidding wars. It's a waste of tokens. Cap it at 5. A bit more if you think the guy will give up. Wait until the last 2 or 1 sec to place the bid. Sometimes you can leave it overnight and dumb luck, you'll get your man.
7. Try not to buy tokens. You can farm or install apps in you phone. I suggest installing tapjoy.
8. Have fun, don't get obssessed!