{% load i18n %}
{% load form_helper %}

<div class="row mt-5">
  <div class="col-md-8">
    <form class="form-inline" method="post" action="{{ submit_url }}">
      {% csrf_token %}
      <fieldset>
        <legend>{{ legend }}</legend>
        <p>
          {% if object.team %}
            {% blocktrans with name=object.team.name url=object.team.get_absolute_url %}
              Currently assigned team: <a href="{{ url }}">{{ name }}</a>.
            {% endblocktrans %}
          {% else %}
            {% trans "Currently no team assigned." %}
          {% endif %}
        </p>
        {% render_form form %}
        <button type="submit" class="btn btn-primary">
          {{ submit_button }}
        </button>
      </fieldset>
    </form>
  </div>
</div>

{% load i18n %}
{% load form_helper %}

<div class="row mt-5">
  <div class="col-md-8">
    <form class="form-inline" method="post" action="{{ submit_url }}">
      {% csrf_token %}
      <fieldset>
        <legend>{{ legend }}</legend>
        <p>
          {% if object.team %}
            {% blocktrans with name=object.team.name url=object.team.get_absolute_url %}
              Currently assigned team: <a href="{{ url }}">{{ name }}</a>.
            {% endblocktrans %}
          {% else %}
            {% trans "Currently no team assigned." %}
          {% endif %}
        </p>
        {% render_form form %}
        <button type="submit" class="btn btn-primary">
          {{ submit_button }}
        </button>
        <p>
          <a href="{% url 'team-list' %}">{% trans "Create a new team." %}</a>
        </p>
      </fieldset>
    </form>
  </div>
</div>

Add team create link on team assign form
Add team create link on team assign form