and again why do we have the rule then?
To force someone into making the decision on purchasing an extension before the player makes the extension offer. It makes purchasing the extension somewhat of a tough decision.
i.e., let's take Celtics Example. He's got Woolridge coming up as an expiring player. Good player. Someone he wants to keep. He'd prefer to lock him up to a longterm deal, but he doesn't want to commit max money to him. He could either purchase an extension, but then only have him on a 1-year deal, and risk losing out on low-end multi-year offer Woolridge makes, or he could not purchase an extension and wait until extension offers come out, but risk Woolridge not making an extesion or making a max offer. He's really let with two outcomes:
- Purchase an extension, spend money, only get a 1 year deal, but get it cheaply.
- Don't purchase an extension, save money, but hope he makes a reasonable extension offer. Risk the player entering free agency.
If you allow someone to purchase extensions after the player offers are sent out, they can determine if the person makes an acceptable offer, and THEN decide it's time to purchase an extension if they don't. The deadline is there to prevent that. As long as you're not allowed to purchase extensions after player offers are sent out, mission accomplished.
for me it is a clear deadline after that i can start my work for the extension
You don't have to wait until extension purchases are finished to start the extensions. You could just delete the players offer after an extension is purchased.