I agree with Jody that we need more information about when/how this is happening. It might be that Alec is overwhelming Jinx, but it could also just be "puppy play". So much depends on the circumstances, and as carol said, reading "dog language".
In any case, another game that can build value into going to a specific person, and ALSO works to teach name recognition and the start of a great recall is to have Alec sit at one end of a hallway, and another person sit at the other end, both with a number of small treats.(if done near meal time, it can even be the puppy's kibble)
Have one person do something to attract the puppy's attention. This can be calling his name, if he knows it well, or if not, saying "pup, pup, pup" in a high voice while gently patting the ground. (do NOT use the word "come" or any other "permanent" recall word right now!!!) when the pup goes to the person, treats, praise and gentle strokes, then have the other person (Alec) call him. With most puppies, it only takes a few reps before the pup understands the game and is BLASTING up and down the hall. Then add the next step, which is to GENTLY restrain the puppy (just by putting your hands around him) before you give him the treat. Otherwise you can develop the idea that "drivebys" are good enough.
This game will teach Jinx to comfortable approach Alec, and it will teach Alec how to gently interact with Jinx so that Jinx doesn't feel any need to act defensive.
I did talk to Dave a couple of days ago. He has some stuff going on right now that is taking up all his time. He said to say "Hi" to everyone, and say that he'll be back as soon as he can!