Micromanagement VS Macromanagement

In Yugioh, Micromanagement cards are easily targeted, most of the time free-chainable, and most importantly only handle one card.
another big difference is that micromanagement cards can most of the time be ignored by the opponent, because its a minor setback only, but also because they tend to come off as not worth countering.

Macromanagement, on the other hand, tend to be much larger scale, affecting many monsters or cards at once.

Whilst for macromanagement, examples include Mirror Force, Heavy Storm, and to a lesser extent Torrential Tribute(damages you too), they also include cards such as Threatening Roar and Waboku, since they do handle a big problem blindly.
Less played examples are cards like Swords of Revealing Light.

Examples of Micromanagement are cards like MST, Enemy Controller, Raigeki Break, Book of Moon, etc. A bit less into this category are smashing and fissure. whilst theyre easy to use and handle only one problem, whilst being "not very valuable" in terms of single card play, allowing for most, if not all, to go through.

Most decks tend to run the easy to think of Macromanagement cards, because theyre a: easy to play, and b: they swing the momentum of the game in your favor.
Most are known as "staples."

Right? You dont see too many decks that dont run Mirror Force, Torrential Tribute, and Heavy Storm if they can afford it.

Keep in mind that all sorts of advantage have micro AND macromanagement cards to deal with them.
EG: Graveyard Advantage.
Micro: Soul Release, Transmigration Prophecy
Macro: Macro Cosmos(no pun), Big Burn.

Another Example: Hand Advantage
Micro: Mind Crush, Spirit Reaper
Macro: Card Destruction, Morphing Pot

Yet more examples: Unseen Card Advantage
Micro: Nobleman of Crossout
Macro: Chaos Pot.

Life Advantage:
Micro: Sparks
Macro: Reversal Quiz

Tempo Advantage:
Micro: Demon Chain, Scrap Iron Scarecrow, Kick Back
Macro: Swords of Revealing Light, Guardian Sphinx.

Conclusion:
When building your deck, be sure to include at least some micromanagement cards, since the chance of them being countered is low, and their individual play value(just how important the play is to YOU) is low.

Whilst the inclusion of these might not mean much to you when building, they really pay out in practice, allowing you to stay in the fight more often.