Reply #7: No.

[Kipling]

1. Coaches should be able to challenge a call with instant replay review like American
Football.

Yesterday, Argentina was robbed of a goal. The ball clearly passed the line and an instant replay review would have corrected a bad call.
+++ Perhaps a TV referee could make such challenges, but letting coaches do it... dear god, they'd never stop trying.

Ending a game in a 0 0 draw is ridiculous, especially in a World Cup.

2. EVERY GAME SHOULD HAVE A WINNER.

+++WHY?

3. After 90 minutes of running around, they should NOT be given more time
to run around, they should go directly to penalty kicks.

+++IMHO they shouldn't have penalty kicks at all. The game should be kept free-flowing.

4. If the goalie stops a plenty kick, the ball should not be able to be kicked again.

+++See above: the game would suffer from being so broken up.

5. In American football and basketball, a coach can take a player out and make
a substitution and later put that player back in the game. Soccer coaches should
be able to do the same.

+++That would not only break up the game, it would also allow people to catch their breath whenever they felt like it!