<td>
<form action="{{action('CuentaController@asignar')}}" method="post">
<select name="valor" id="valor" class=" form-control" value="{{ old('tipo') }}"
required>
@foreach($usuariosOpciones as $user_id => $usuario_ad)
<option value="{{ $user_id }}">{{ $usuario_ad }}</option>
@endforeach
</select>
<input type="text" name="gestion" id="gestion" class="form-control input-sm"
placeholder="gestion" value="{{{$usuario->username}}}" readonly="readonly"
style="visibility:hidden">
{{csrf_field()}}
<button class="btn btn-info" type="submit"><span>Asignar tarea</span></button>
</form>
</td>