The garden wasn't big enough. Or at least the part of the garden that gets sun wasn't big enough. And the yard had a barren area that needed some grass. Time for a remodel before:
and after:
Sure, it doesn't look like much to you. But now the garden bulges out into former lawn space by nearly 3 feet (or by two tomato plants, depends on how you measure). At the same time, Maddy and Jules have more yard to run around in (not that Juliet is a very fast runner)